<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1870-3542</journal-id>
<journal-title><![CDATA[Revista mexicana de física E]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fís. E]]></abbrev-journal-title>
<issn>1870-3542</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Física]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-35422011000200002</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Luminiscencia up-convertida de iones TR3+]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lira-Campos]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mayorga-Rojas]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Autónoma del Estado de México Unidad Académica Profesional ]]></institution>
<addr-line><![CDATA[ Estado de México]]></addr-line>
<country>México</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Universidad Autónoma del Estado de México Facultad de Ciencias Departamento de Física]]></institution>
<addr-line><![CDATA[Toluca Estado de México]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2011</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2011</year>
</pub-date>
<volume>57</volume>
<numero>2</numero>
<fpage>114</fpage>
<lpage>118</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-35422011000200002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-35422011000200002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-35422011000200002&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[En el escenario del inminente desarrollo de la tecnología fotónica, las aplicaciones de la luminiscencia up-convertida desplegada por los iones trivalentes de tierras raras (iones RT³+) son especialmente relevantes. Desde la producción de dispositivos láser compactos de estado sólido en el visible, pantallas de alta brillantez, relevadores ópticos hasta materiales para enfriamiento óptico. El presente trabajo pretende proporcionar información práctica sobre el proceso de conversión de frecuencia del infrarrojo al visible y algunas posibilidades de aplicación en la tecnología fotónica.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[In the scenario of the imminent development of photonics technology, up-converted luminescence applications displayed by the trivalent rare earth ions (RT³+ ions) are especially relevant. From the production of compact solid-state lasers in the visible, high brightness displays, optical relays to materials for optical cooling. The present work aims to provide practical information on the process of frequency conversion from infrared to visible light and some possibilities of application in photonics technology.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Luminiscencia up-convertida]]></kwd>
<kwd lng="es"><![CDATA[estado sólido]]></kwd>
<kwd lng="es"><![CDATA[iones RT3+]]></kwd>
<kwd lng="es"><![CDATA[tecnología fotónica]]></kwd>
<kwd lng="en"><![CDATA[Up-converted luminiscence]]></kwd>
<kwd lng="en"><![CDATA[solid-state]]></kwd>
<kwd lng="en"><![CDATA[RT3+ions]]></kwd>
<kwd lng="en"><![CDATA[photonics technology]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  	    <p align="justify"><font face="verdana" size="4">Ense&ntilde;anza</font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="center"><font face="verdana" size="4"><b>Luminiscencia up&#150;convertida de iones TR<sup>3+</sup></b></font></p>  	    <p align="center"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="center"><font face="verdana" size="2"><b>A. Lira&#150;Campos<sup>1</sup> y M. Mayorga&#150;Rojas<sup>2</sup></b></font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><i><sup>1</sup> Unidad Acad&eacute;mica Profesional UAEM Nezahualc&oacute;yotl, Universidad Aut&oacute;noma del Estado de M&eacute;xico, Av. Bordo de Xochiaca S/N, Col. Benito Ju&aacute;rez, 57000, Nezahualc&oacute;yotl, Estado de M&eacute;xico, M&eacute;xico, Tel: 01 (55) 5112&#150;6372, Ext. 7918; Fax: 01 (55) 5112 6426 e&#150;mail:</i> <a href="mailto:zoali@prodigy.net.mx">zoali@prodigy.net.mx</a></font></p>  	    <p align="justify"><font face="verdana" size="2"><i><sup>2</sup> Departamento de F&iacute;sica, Facultad de Ciencias, Universidad Aut&oacute;noma del Estado de M&eacute;xico, Av. Instituto Literario 100, Toluca 50000, Estado de M&eacute;xico, M&eacute;xico, Tel: 01 (722) 296 5556; Fax: 01 (722) 296 5554 e&#150;mail:</i> <a href="mailto:mmr@uaemex.mx">mmr@uaemex.mx</a></font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">Recibido el 1 de febrero de 2011.    <br> 	Aceptado el 13 de junio de 2011.</font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>  	    <p align="justify"><font face="verdana" size="2">En el escenario del inminente desarrollo de la tecnolog&iacute;a fot&oacute;nica, las aplicaciones de la luminiscencia up&#150;convertida desplegada por los iones trivalentes de tierras raras (iones RT<sup>3</sup>+) son especialmente relevantes. Desde la producci&oacute;n de dispositivos l&aacute;ser compactos de estado s&oacute;lido en el visible, pantallas de alta brillantez, relevadores &oacute;pticos hasta materiales para enfriamiento &oacute;ptico. El presente trabajo pretende proporcionar informaci&oacute;n pr&aacute;ctica sobre el proceso de conversi&oacute;n de frecuencia del infrarrojo al visible y algunas posibilidades de aplicaci&oacute;n en la tecnolog&iacute;a fot&oacute;nica.</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Descriptores:</b> Luminiscencia up&#150;convertida; estado s&oacute;lido; iones RT<sup>3+</sup>; tecnolog&iacute;a fot&oacute;nica.</font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>  	    <p align="justify"><font face="verdana" size="2">In the scenario of the imminent development of photonics technology, up&#150;converted luminescence applications displayed by the trivalent rare earth ions (RT<sup>3</sup>+ ions) are especially relevant. From the production of compact solid&#150;state lasers in the visible, high brightness displays, optical relays to materials for optical cooling. The present work aims to provide practical information on the process of frequency conversion from infrared to visible light and some possibilities of application in photonics technology.</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Keywords:</b> Up&#150;converted luminiscence; solid&#150;state; RT<sup>3+</sup>ions; photonics technology.</font></p>  	    ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>      <p align="justify"><font face="verdana" size="2">PACS: 78.55Hx</font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><a href="/pdf/rmfe/v57n2/v57n2a2.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Referencias</b></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">1. B. Henderson, G.F. Imbusch, <i>Optical Spectroscopy of Inorganic Solids</i> (Claredon Press&#150;Oxford, Great Britain, 1989) p.p. 387&#150;406, 174,78&#150;145.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456176&pid=S1870-3542201100020000200001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">2. L.F. Johnson, H.J. Guggenheim, <i>Appl. Phys. Lett.</i> 172 (1971) 44.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456178&pid=S1870-3542201100020000200002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font face="verdana" size="2">3. A. Lenth, R.M. MacFarlane, <i>J.Lum.</i> <b>45</b> (1990) 346&#150;350.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456180&pid=S1870-3542201100020000200003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">4. O.G. Gardens, <i>Trends in Optical Materials</i> (Nova Science Publisher, USA, 2007) p.p. 91&#150;112.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456182&pid=S1870-3542201100020000200004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">5. G. Yi, C. Lu, H. Lu, S. Zhao, Y. Ge, W. Yang, D. Chen, L.H. Guo, <i>Nano Lett.</i> <b>4</b> (2004) 2191&#150;2196.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456184&pid=S1870-3542201100020000200005&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">6. B.R. Judd, <i>Phys. Rev.</i> <b>127</b> (1962) 750.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456186&pid=S1870-3542201100020000200006&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">7. G.S. Ofelt, <i>Chem. Phys.</i> <b>37</b> (1962) 511&#150;520.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456188&pid=S1870-3542201100020000200007&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font face="verdana" size="2">8. S. H&uuml;fner, <i>Optical Spectra of Transparent Rare Earth Compounds</i> (Academic Press, USA, 1978) p.p. 115&#150;135.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456190&pid=S1870-3542201100020000200008&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">9. C. Kittel, <i>Introducci&oacute;n a la f&iacute;sica del estado s&oacute;lido,</i> Ed. 2a (Reverte, Espana, 1975&#150;1976) p.p. 165&#150;206.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456192&pid=S1870-3542201100020000200009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">10. M. G&ouml;ppert&#150;Mayer, <i>Annalen der Physik</i> <b>9</b> (1931) 273&#150;294.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456194&pid=S1870-3542201100020000200010&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">11. W. Kaiser, C.G.B. Garrett, <i>Phys. Rev. Lett.</i> <b>7</b> (1961) 229&#150;231.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456196&pid=S1870-3542201100020000200011&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">12. P.A. Franken, A.E. Hill, C.W. Peters, G. Wienriech, <i>Phys. Rev. Lett. <b>7</b></i> (1961) 118&#150;120.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456198&pid=S1870-3542201100020000200012&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font face="verdana" size="2">13. S. Guy, M.F. Joubert, B. Jacquier, M. Bouazaoui, <i>Phys. Rev. B</i> <b>47</b> (1993) 11001&#150;11006</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456200&pid=S1870-3542201100020000200013&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">14. T. Chuang, H.Verdun, <i>IEEE J. Quantum Electron.</i> <b>32</b> (1996) 79.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456201&pid=S1870-3542201100020000200014&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">15. F. Ramos, D. Jaque, J. Garc&iacute;a&#150;Sole, U. Caldino G., <i>J. Phys.: Condens. Matt.</i> <b>12</b> (2000) L&#150;441</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456203&pid=S1870-3542201100020000200015&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">16. D. Jaque, O. Enguita, U. Caldino G., M.O. Ram&iacute;rez, J. Garc&iacute;a&#150;Sole, C. Zaldo, J.E. Mu&ntilde;oz&#150;Santiuste, A.D. Jiang, Z.D. Luo, J <i>Appl. Phys.</i> <b>90</b> (2001) 561&#150;569.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456204&pid=S1870-3542201100020000200016&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">17. F.E. Auzel, <i>Materials and devices using doubled&#150;pumped phosphors with energy transfer, Proc. IEEE</i> <b>61</b> (1973) 758&#150;786.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456206&pid=S1870-3542201100020000200017&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">18. F.K. Fong (Ed), <i>Topics of Applied Physics, Vol <b>15</b></i> (Springer, Berl&iacute;n, RFA, 1976) p.p. 239.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456208&pid=S1870-3542201100020000200018&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font face="verdana" size="2">19. J.P. Jouart, E.W.J. Oomen, <i>Phys. Stat. Sol. (b)</i> <b>172</b> (1992) 461470.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456210&pid=S1870-3542201100020000200019&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">20. J.K. Lawson, S.A. Payne, <i>Phys. Rev. B</i> <b>47</b> (1993) 14003140010.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456212&pid=S1870-3542201100020000200020&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">21. D. Narayana, J. Prasad, P.N. Prasad, <i>Phys. Rev.</i> <b>28</b> (1983) 20.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456214&pid=S1870-3542201100020000200021&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">22. J.L. Doualan, C. Maunier, D. Descamps, J. Landais, R. Moncarge, <i>Phys. Rev. B</i> <b>62</b> (2000) 4459&#150;4463.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456216&pid=S1870-3542201100020000200022&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">23. D.L. Dexter, J <i>Chem. Phys.</i> <b>21</b> (1953) 863.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456218&pid=S1870-3542201100020000200023&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font face="verdana" size="2">24. F.E. Auzel, <i>Upconversion processes in coupled ion systems, J.</i> <i>Lum. Proc.</i> <b>45</b> (1990) 341&#150;345.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456220&pid=S1870-3542201100020000200024&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">25. C. Bertini, A. Toncelli, M. Tonelli, E. Cavalli, N. Magnani, <i>J. Lumin.</i> <b>106</b> (2004) 235&#150;242.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456222&pid=S1870-3542201100020000200025&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">26. L. N&uacute;&ntilde;ez, B. Herreros, R. Duchowicz, G. Linfante, J.O. Tocho, F. Cusso, <i>J. Lum. International Conference of Luminiscence</i> <b>6061</b> (1994) 81&#150;84.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456224&pid=S1870-3542201100020000200026&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">27. W.E. Case, M.E. Koch, A.W. Kueny, <i>J. Lumin.</i> <b>45</b> (1990) 351353.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456226&pid=S1870-3542201100020000200027&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">28. F. Lahoz, I.R. Mart&iacute;n, V.L. Guadalupe, J. M&eacute;ndez&#150;Ramos, V.D. Rodr&iacute;guez, U.R. Rodr&iacute;guez&#150;Mendoza, <i>Opt. Mat.</i> <b>25</b> (2004) 209&#150;213.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456228&pid=S1870-3542201100020000200028&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font face="verdana" size="2">29. B. Di Bartolo, O. Forte (Eds), <i>Advances in spectroscopy for lasers and sensing</i> (NATO Science Series Vol. <b>231,</b> Springer, Netherlands, 2006) p.p. 83&#150;101.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456230&pid=S1870-3542201100020000200029&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">30. G. Liu, B. Jaquier, <i>Spectroscopic Properties of Rare Earths on Optical Materials.</i> (Springer Series in Materials Science Vol. <b>83</b> Springer, China, 2005) p.p. 130&#150;186.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456232&pid=S1870-3542201100020000200030&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">31. H. Wadi, E. Pollak, <i>J. Chem. Phys.</i> <b>110</b> (1999) 11890&#150;11905.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456234&pid=S1870-3542201100020000200031&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">32. Q. Xiang, Y. Zhou, Y.L. Lam, C.H. Kam, Y.C. Chan, S. Buddhudu, <i>J. Mat. Scien. Lett.</i> <b>19</b> (2000) 2139&#150;2140.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456236&pid=S1870-3542201100020000200032&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">33. J. Ganem, J. Crawford, P. Schmidt, N.W. Jenkins, S.R. Bowman, <i>Phys. Rev. B</i> <b>66</b> (2002) 245101&#150;245115.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456238&pid=S1870-3542201100020000200033&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font face="verdana" size="2">34. M. Pollnau, D.R. Gamelin, S.R. Luthi, H.U. G&uuml;del, <i>Phys. Rev. B</i> <b>61</b> (2000) 3337&#150;3346.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456240&pid=S1870-3542201100020000200034&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">35. R.W. Waynant, M.N. Ediger, <i>Electro&#150;Optics Handbook,</i> Ed. 2a (McGraw&#150;Hill, USA, 2000) p.p. 5.4.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456242&pid=S1870-3542201100020000200035&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">36. S. Singh, J.S. Geusic, <i>Phys. Rev. Lett.</i> <b>17</b> (1966) 865&#150;868.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456244&pid=S1870-3542201100020000200036&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">37. G.Y. Chen, C.H. Yang, B. Aghahadi, H.J. Liang, Y. Liu, L. Li, Z.G. Zhang, <i>J. Op. Soc. Am. B</i> <b>27</b> (2010) 1158&#150;1164.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456246&pid=S1870-3542201100020000200037&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">38. M.O. Ram&iacute;rez, L.E. Baus&aacute;, A. Lira, U. Caldino, <i>J. Mat. Sci. Lett.</i> <b>21</b> (2002) 1517&#150;1519</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456248&pid=S1870-3542201100020000200038&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">39. A. Lira, M.O. Ram&iacute;rez, J. Garc&iacute;a Sole, U. Caldino G., <i>Opt. Mat.</i> <b>29</b> (2007) 605&#150;609.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456249&pid=S1870-3542201100020000200039&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">40. D. Matsuura, <i>Appl. Phys. Lett.</i> <b>81</b> (2002) 4526</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456251&pid=S1870-3542201100020000200040&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">41. J.R. Souvyer, J. Grimm, M.K. van Veen, D. Biner, K.W. Kramer, H.U. G&uuml;del, <i>J. Lum.</i> <b>117</b> (2006) 1&#150;12.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456252&pid=S1870-3542201100020000200041&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">42. Photonic products. Sanyo Inc. (1995&#150;2010).    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456254&pid=S1870-3542201100020000200042&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">43. C.W. Hoyt, M. Sheik&#150;Bahae, R.I. Epstein, B.C. Edwards, J.E. Anderson, <i>Phys. Rev. Lett.</i> <b>85</b> (2000) 3600&#150;3603.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456256&pid=S1870-3542201100020000200043&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">44. C.W. Hoyt, M.P. Hasselbeck, M. Sheik&#150;Bahae, R.I. Epstein, S. Greenfield, J. Thiede, J. Distel, J. Valencia, <i>J. Opt. Soc. Am. B</i> <b>20</b> (2003) 1066&#150;1074.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456258&pid=S1870-3542201100020000200044&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font face="verdana" size="2">45. R.I. Epstein, M.I. Buchwald, B.C. Edwards, T.R. Gosnell, C.E. Mungan, <i>Letters to Nature</i> <b>377</b> (1995) 500.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456260&pid=S1870-3542201100020000200045&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">46. S. Hocde, S. Jiang. S., X. Peng, N. Peyghambarian, T. Luo, M. Morrel, <i>Opt. Mat.</i> <b>25</b> (2004) 149&#150;156.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456262&pid=S1870-3542201100020000200046&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">47. P. Le Boulanger, J.&#150;L. Doualan, S. Girard, J. Margerie, R. Moncorge, <i>Phys. Rev. B</i> <b>60</b> (1999) 11380&#150;11390.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456264&pid=S1870-3542201100020000200047&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">48. E.A. Cornell, C.E. Wieman, <i>Scientific American</i> <b>278</b> (1998) 4045.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456266&pid=S1870-3542201100020000200048&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">49. M. Yu, F. Li, Z. Chen, H. Hu, C. Zhan, H. Yang, C. Huang, <i>Anal. Chem.</i> <b>81</b> (2009) 930&#150;935.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456268&pid=S1870-3542201100020000200049&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font face="verdana" size="2">50. B.W. Garner, T. Cai, Z. Hu, M. Kim, A. Neogi, <i>App. Phys. Exp.</i> <b>2</b> (2009) 075001.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456270&pid=S1870-3542201100020000200050&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">51. N.K. Giri, D.K. Rai, S.B. Rai, <i>J. App. Phys.</i> <b>204</b> (2008) 113107&#150;113111.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456272&pid=S1870-3542201100020000200051&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>      <!-- ref --><p align="justify"><font face="verdana" size="2">52. V. Mahalingam, F. Mangiarini, F. Vetrone, V. Venkatramu, M. Betinelli, A. Speghini, J.A. Capobianco, <i>J. Phys. Chem. Lett. C</i> <b>112</b> (2008) 17745&#150;17749.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456274&pid=S1870-3542201100020000200052&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">53. G.A. Mourou, C. Labaune, D.Hulin, A. Galvanauskas, <i>J. Phys.: Conference Series</i> <b>112</b> (2008) 032052.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456276&pid=S1870-3542201100020000200053&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">54. G.A. Reider, J <i>Phys. D: Appl. Phys.</i> <b>37</b> (2004) R37&#150;R48.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456278&pid=S1870-3542201100020000200054&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font face="verdana" size="2">55. A. Pukhov, <i>Rep. Prog. Phys.</i> <b>66</b> (2003) 2847.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8456280&pid=S1870-3542201100020000200055&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>      ]]></body><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Henderson]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Imbusch]]></surname>
<given-names><![CDATA[G.F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Optical Spectroscopy of Inorganic Solids]]></source>
<year>1989</year>
<page-range>387-406, 174,78-145</page-range><publisher-name><![CDATA[Claredon Press-Oxford]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Johnson]]></surname>
<given-names><![CDATA[L.F.]]></given-names>
</name>
<name>
<surname><![CDATA[Guggenheim]]></surname>
<given-names><![CDATA[H.J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Appl. Phys. Lett.]]></source>
<year>1971</year>
<volume>172</volume>
<page-range>44</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lenth]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[MacFarlane]]></surname>
<given-names><![CDATA[R.M.]]></given-names>
</name>
</person-group>
<source><![CDATA[J.Lum.]]></source>
<year>1990</year>
<volume>45</volume>
<page-range>346-350</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gardens]]></surname>
<given-names><![CDATA[O.G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Trends in Optical Materials]]></source>
<year>2007</year>
<page-range>91-112</page-range><publisher-name><![CDATA[Nova Science Publisher]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yi]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Lu]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Lu]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhao]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Ge]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Yang]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Guo]]></surname>
<given-names><![CDATA[L.H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Nano Lett.]]></source>
<year>2004</year>
<volume>4</volume>
<page-range>2191-2196</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Judd]]></surname>
<given-names><![CDATA[B.R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Phys. Rev.]]></source>
<year>1962</year>
<volume>127</volume>
<page-range>750</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ofelt]]></surname>
<given-names><![CDATA[G.S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Chem. Phys.]]></source>
<year>1962</year>
<volume>37</volume>
<page-range>511-520</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hüfner]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Optical Spectra of Transparent Rare Earth Compounds]]></source>
<year>1978</year>
<page-range>115-135</page-range><publisher-name><![CDATA[Academic Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kittel]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Introducción a la física del estado sólido]]></source>
<year>1975</year>
<edition>2a</edition>
<page-range>165-206</page-range><publisher-name><![CDATA[Reverte]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Göppert-Mayer]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Annalen der Physik]]></source>
<year>1931</year>
<volume>9</volume>
<page-range>273-294</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kaiser]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Garrett]]></surname>
<given-names><![CDATA[C.G.B.]]></given-names>
</name>
</person-group>
<source><![CDATA[Phys. Rev. Lett.]]></source>
<year>1961</year>
<volume>7</volume>
<page-range>229-231</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Franken]]></surname>
<given-names><![CDATA[P.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Hill]]></surname>
<given-names><![CDATA[A.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Peters]]></surname>
<given-names><![CDATA[C.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Wienriech]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Phys. Rev. Lett.]]></source>
<year>1961</year>
<volume>7</volume>
<page-range>118-120</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Guy]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Joubert]]></surname>
<given-names><![CDATA[M.F.]]></given-names>
</name>
<name>
<surname><![CDATA[Jacquier]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Bouazaoui]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Phys. Rev. B]]></source>
<year>1993</year>
<volume>47</volume>
<page-range>11001-11006</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chuang]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Verdun]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<source><![CDATA[IEEE J. Quantum Electron.]]></source>
<year>1996</year>
<volume>32</volume>
<page-range>79</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ramos]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Jaque]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Sole]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Caldino G.]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Phys.: Condens. Matt.]]></source>
<year></year>
<volume>12</volume>
<page-range>L-441</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jaque]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Enguita]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Caldino G.]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
<name>
<surname><![CDATA[Ramírez]]></surname>
<given-names><![CDATA[M.O.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Sole]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Zaldo]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Muñoz-Santiuste]]></surname>
<given-names><![CDATA[J.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Jiang]]></surname>
<given-names><![CDATA[A.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Luo]]></surname>
<given-names><![CDATA[Z.D.]]></given-names>
</name>
</person-group>
<source><![CDATA[J Appl. Phys.]]></source>
<year>2001</year>
<volume>90</volume>
<page-range>561-569</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Auzel]]></surname>
<given-names><![CDATA[F.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[Materials and devices using doubled-pumped phosphors with energy transfer]]></article-title>
<source><![CDATA[Proc. IEEE]]></source>
<year>1973</year>
<volume>61</volume>
<page-range>758-786</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fong]]></surname>
<given-names><![CDATA[F.K.]]></given-names>
</name>
</person-group>
<source><![CDATA[Topics of Applied Physics]]></source>
<year>1976</year>
<month>23</month>
<day>9</day>
<volume>15</volume>
<publisher-loc><![CDATA[Berlín ]]></publisher-loc>
<publisher-name><![CDATA[Springer]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jouart]]></surname>
<given-names><![CDATA[J.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Oomen]]></surname>
<given-names><![CDATA[E.W.J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Phys. Stat. Sol.]]></source>
<year>1992</year>
<volume>172</volume>
<page-range>461470</page-range></nlm-citation>
</ref>
<ref id="B20">
<label>20</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lawson]]></surname>
<given-names><![CDATA[J.K.]]></given-names>
</name>
<name>
<surname><![CDATA[Payne]]></surname>
<given-names><![CDATA[S.A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Phys. Rev. B]]></source>
<year>1993</year>
<volume>47</volume>
<page-range>14003140010</page-range></nlm-citation>
</ref>
<ref id="B21">
<label>21</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Narayana]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Prasad]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Prasad]]></surname>
<given-names><![CDATA[P.N.]]></given-names>
</name>
</person-group>
<source><![CDATA[Phys. Rev.]]></source>
<year>1983</year>
<volume>28</volume>
<page-range>20</page-range></nlm-citation>
</ref>
<ref id="B22">
<label>22</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Doualan]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Maunier]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Descamps]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Landais]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Moncarge]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Phys. Rev. B]]></source>
<year>2000</year>
<volume>62</volume>
<page-range>4459-4463</page-range></nlm-citation>
</ref>
<ref id="B23">
<label>23</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dexter]]></surname>
<given-names><![CDATA[D.L.]]></given-names>
</name>
</person-group>
<source><![CDATA[J Chem. Phys.]]></source>
<year>1953</year>
<volume>21</volume>
<page-range>863</page-range></nlm-citation>
</ref>
<ref id="B24">
<label>24</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Auzel]]></surname>
<given-names><![CDATA[F.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[Upconversion processes in coupled ion systems]]></article-title>
<source><![CDATA[J. Lum. Proc.]]></source>
<year>1990</year>
<volume>45</volume>
<page-range>341-345</page-range></nlm-citation>
</ref>
<ref id="B25">
<label>25</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bertini]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Toncelli]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Tonelli]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Cavalli]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Magnani]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Lumin.]]></source>
<year>2004</year>
<volume>106</volume>
<page-range>235-242</page-range></nlm-citation>
</ref>
<ref id="B26">
<label>26</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Núñez]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Herreros]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Duchowicz]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Linfante]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Tocho]]></surname>
<given-names><![CDATA[J.O.]]></given-names>
</name>
<name>
<surname><![CDATA[Cusso]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Lum. International Conference of Luminiscence]]></source>
<year>1994</year>
<volume>6061</volume>
<page-range>81-84</page-range></nlm-citation>
</ref>
<ref id="B27">
<label>27</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Case]]></surname>
<given-names><![CDATA[W.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Koch]]></surname>
<given-names><![CDATA[M.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Kueny]]></surname>
<given-names><![CDATA[A.W.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Lumin.]]></source>
<year>1990</year>
<volume>45</volume>
<page-range>351353</page-range></nlm-citation>
</ref>
<ref id="B28">
<label>28</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lahoz]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Martín]]></surname>
<given-names><![CDATA[I.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Guadalupe]]></surname>
<given-names><![CDATA[V.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Méndez-Ramos]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Rodríguez]]></surname>
<given-names><![CDATA[V.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Rodríguez-Mendoza]]></surname>
<given-names><![CDATA[U.R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Opt. Mat.]]></source>
<year>2004</year>
<volume>25</volume>
<page-range>209-213</page-range></nlm-citation>
</ref>
<ref id="B29">
<label>29</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Di Bartolo]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Forte]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[Advances in spectroscopy for lasers and sensing]]></article-title>
<source><![CDATA[NATO Science Series]]></source>
<year>2006</year>
<volume>231</volume>
<page-range>83-101</page-range><publisher-name><![CDATA[Springer]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B30">
<label>30</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Jaquier]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[Spectroscopic Properties of Rare Earths on Optical Materials]]></article-title>
<source><![CDATA[Springer Series in Materials Science]]></source>
<year></year>
<volume>83</volume>
<page-range>130-186</page-range><publisher-name><![CDATA[Springer]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B31">
<label>31</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wadi]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Pollak]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Chem. Phys.]]></source>
<year>1999</year>
<volume>110</volume>
<page-range>11890-11905</page-range></nlm-citation>
</ref>
<ref id="B32">
<label>32</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Xiang]]></surname>
<given-names><![CDATA[Q.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhou]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Lam]]></surname>
<given-names><![CDATA[Y.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Kam]]></surname>
<given-names><![CDATA[C.H.]]></given-names>
</name>
<name>
<surname><![CDATA[Chan]]></surname>
<given-names><![CDATA[Y.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Buddhudu]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Mat. Scien. Lett.]]></source>
<year>2000</year>
<volume>19</volume>
<page-range>2139-2140</page-range></nlm-citation>
</ref>
<ref id="B33">
<label>33</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ganem]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Crawford]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Schmidt]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Jenkins]]></surname>
<given-names><![CDATA[N.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Bowman]]></surname>
<given-names><![CDATA[S.R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Phys. Rev. B]]></source>
<year>2002</year>
<volume>66</volume>
<page-range>245101-245115</page-range></nlm-citation>
</ref>
<ref id="B34">
<label>34</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pollnau]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Gamelin]]></surname>
<given-names><![CDATA[D.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Luthi]]></surname>
<given-names><![CDATA[S.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Güdel]]></surname>
<given-names><![CDATA[H.U.]]></given-names>
</name>
</person-group>
<source><![CDATA[Phys. Rev. B]]></source>
<year>2000</year>
<volume>61</volume>
<page-range>3337-3346</page-range></nlm-citation>
</ref>
<ref id="B35">
<label>35</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Waynant]]></surname>
<given-names><![CDATA[R.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Ediger]]></surname>
<given-names><![CDATA[M.N.]]></given-names>
</name>
</person-group>
<source><![CDATA[Electro-Optics Handbook]]></source>
<year>2000</year>
<edition>2a</edition>
<page-range>5.4.</page-range><publisher-name><![CDATA[McGraw-Hill]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B36">
<label>36</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Singh]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Geusic]]></surname>
<given-names><![CDATA[J.S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Phys. Rev. Lett.]]></source>
<year>1966</year>
<volume>17</volume>
<page-range>865-868</page-range></nlm-citation>
</ref>
<ref id="B37">
<label>37</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[G.Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Yang]]></surname>
<given-names><![CDATA[C.H.]]></given-names>
</name>
<name>
<surname><![CDATA[Aghahadi]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Liang]]></surname>
<given-names><![CDATA[H.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[Z.G.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Op. Soc. Am. B]]></source>
<year>2010</year>
<volume>27</volume>
<page-range>1158-1164</page-range></nlm-citation>
</ref>
<ref id="B38">
<label>38</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ramírez]]></surname>
<given-names><![CDATA[M.O.]]></given-names>
</name>
<name>
<surname><![CDATA[Bausá]]></surname>
<given-names><![CDATA[L.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Lira]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Caldino]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Mat. Sci. Lett.]]></source>
<year>2002</year>
<volume>21</volume>
<page-range>1517-1519</page-range></nlm-citation>
</ref>
<ref id="B39">
<label>39</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lira]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ramírez]]></surname>
<given-names><![CDATA[M.O.]]></given-names>
</name>
<name>
<surname><![CDATA[García Sole]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Caldino G.]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
</person-group>
<source><![CDATA[Opt. Mat.]]></source>
<year>2007</year>
<volume>29</volume>
<page-range>605-609</page-range></nlm-citation>
</ref>
<ref id="B40">
<label>40</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Matsuura]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Appl. Phys. Lett.]]></source>
<year>2002</year>
<volume>81</volume>
<page-range>4526</page-range></nlm-citation>
</ref>
<ref id="B41">
<label>41</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Souvyer]]></surname>
<given-names><![CDATA[J.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Grimm]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[van Veen]]></surname>
<given-names><![CDATA[M.K.]]></given-names>
</name>
<name>
<surname><![CDATA[Biner]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Kramer]]></surname>
<given-names><![CDATA[K.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Güdel]]></surname>
<given-names><![CDATA[H.U.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Lum.]]></source>
<year>2006</year>
<volume>117</volume>
<page-range>1-12</page-range></nlm-citation>
</ref>
<ref id="B42">
<label>42</label><nlm-citation citation-type="book">
<source><![CDATA[Photonic products]]></source>
<year>1995</year>
<publisher-name><![CDATA[Sanyo Inc.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B43">
<label>43</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hoyt]]></surname>
<given-names><![CDATA[C.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Sheik-Bahae]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Epstein]]></surname>
<given-names><![CDATA[R.I.]]></given-names>
</name>
<name>
<surname><![CDATA[Edwards]]></surname>
<given-names><![CDATA[B.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Anderson]]></surname>
<given-names><![CDATA[J.E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Phys. Rev. Lett.]]></source>
<year>2000</year>
<volume>85</volume>
<page-range>3600-3603</page-range></nlm-citation>
</ref>
<ref id="B44">
<label>44</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hoyt]]></surname>
<given-names><![CDATA[C.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Hasselbeck]]></surname>
<given-names><![CDATA[M.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Sheik-Bahae]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Epstein]]></surname>
<given-names><![CDATA[R.I.]]></given-names>
</name>
<name>
<surname><![CDATA[Greenfield]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Thiede]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Distel]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Valencia]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Opt. Soc. Am. B]]></source>
<year>2003</year>
<volume>20</volume>
<page-range>1066-1074</page-range></nlm-citation>
</ref>
<ref id="B45">
<label>45</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Epstein]]></surname>
<given-names><![CDATA[R.I.]]></given-names>
</name>
<name>
<surname><![CDATA[Buchwald]]></surname>
<given-names><![CDATA[M.I.]]></given-names>
</name>
<name>
<surname><![CDATA[Edwards]]></surname>
<given-names><![CDATA[B.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Gosnell]]></surname>
<given-names><![CDATA[T.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Mungan]]></surname>
<given-names><![CDATA[C.E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Letters to Nature]]></source>
<year>1995</year>
<volume>377</volume>
<page-range>500</page-range></nlm-citation>
</ref>
<ref id="B46">
<label>46</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hocde]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Jiang. S.]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Peng]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Peyghambarian]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Luo]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Morrel]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Opt. Mat.]]></source>
<year>2004</year>
<volume>25</volume>
<page-range>149-156</page-range></nlm-citation>
</ref>
<ref id="B47">
<label>47</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Le Boulanger]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Doualan]]></surname>
<given-names><![CDATA[J.-L.]]></given-names>
</name>
<name>
<surname><![CDATA[Girard]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Margerie]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Moncorge]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Phys. Rev. B]]></source>
<year>1999</year>
<volume>60</volume>
<page-range>11380-11390</page-range></nlm-citation>
</ref>
<ref id="B48">
<label>48</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cornell]]></surname>
<given-names><![CDATA[E.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Wieman]]></surname>
<given-names><![CDATA[C.E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Scientific American]]></source>
<year>1998</year>
<volume>278</volume>
<page-range>4045</page-range></nlm-citation>
</ref>
<ref id="B49">
<label>49</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yu]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Hu]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhan]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Yang]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Huang]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Anal. Chem.]]></source>
<year>2009</year>
<volume>81</volume>
<page-range>930-935</page-range></nlm-citation>
</ref>
<ref id="B50">
<label>50</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Garner]]></surname>
<given-names><![CDATA[B.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Cai]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Hu]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Kim]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Neogi]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[App. Phys. Exp.]]></source>
<year>2009</year>
<volume>2</volume>
<page-range>075001</page-range></nlm-citation>
</ref>
<ref id="B51">
<label>51</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Giri]]></surname>
<given-names><![CDATA[N.K.]]></given-names>
</name>
<name>
<surname><![CDATA[Rai]]></surname>
<given-names><![CDATA[D.K.]]></given-names>
</name>
<name>
<surname><![CDATA[Rai]]></surname>
<given-names><![CDATA[S.B.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. App. Phys.]]></source>
<year>2008</year>
<volume>204</volume>
<page-range>113107-113111</page-range></nlm-citation>
</ref>
<ref id="B52">
<label>52</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mahalingam]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Mangiarini]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Vetrone]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Venkatramu]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Betinelli]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Speghini]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Capobianco]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Phys. Chem. Lett. C]]></source>
<year>2008</year>
<volume>112</volume>
<page-range>17745-17749</page-range></nlm-citation>
</ref>
<ref id="B53">
<label>53</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mourou]]></surname>
<given-names><![CDATA[G.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Labaune]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Hulin]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Galvanauskas]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Phys.: Conference Series]]></source>
<year>2008</year>
<volume>112</volume>
<page-range>032052</page-range></nlm-citation>
</ref>
<ref id="B54">
<label>54</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Reider]]></surname>
<given-names><![CDATA[G.A.]]></given-names>
</name>
</person-group>
<source><![CDATA[J Phys. D: Appl. Phys.]]></source>
<year>2004</year>
<volume>37</volume>
<page-range>R37-R48.</page-range></nlm-citation>
</ref>
<ref id="B55">
<label>55</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pukhov]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Rep. Prog. Phys.]]></source>
<year>2003</year>
<volume>66</volume>
<page-range>2847</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
