<?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>0035-001X</journal-id>
<journal-title><![CDATA[Revista mexicana de física]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fis.]]></abbrev-journal-title>
<issn>0035-001X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Física]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0035-001X2003000500006</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Spherical fused silica microlenses fabricated by the melting method]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Calixto]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sanchez-Marin]]></surname>
<given-names><![CDATA[F.J.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Centro de Investigaciones en Optica A.C  ]]></institution>
<addr-line><![CDATA[León Guanajuato]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>10</month>
<year>2003</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>10</month>
<year>2003</year>
</pub-date>
<volume>49</volume>
<numero>5</numero>
<fpage>421</fpage>
<lpage>424</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2003000500006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2003000500006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2003000500006&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Fiber ends are irradiated by a focused CO2 beam causing material to melt. Surface tension shapes the melted material into a spherical microlens that remains joined to the fiber. Such lenses can be used to form images or to focus light. Back focal distances and other parameters of the lenses have been measured.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Los extremos de fibras (ópticas fueron iluminados con luz enfocada de un laser de CO2. El resultado fue la fundición de esos extremos. Debido a la tensión superficial el material fundido se convirtió en una microlente esférica que quedo adherida a la fibra. Tales lentes se pueden utilizar para formar imágenes o enfocar luz. Las distancias focales posteriores y otros parámetros de las lentes fabricadas han sido medidos.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Microlenses]]></kwd>
<kwd lng="es"><![CDATA[Micro-óptica]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="justify"><font face="verdana" size="4">Investigaci&oacute;n</font></p>      <p align="justify">&nbsp;</p>     <p align="center"><font face="verdana" size="4"><b>Spherical fused silica microlenses fabricated by the melting method</b></font></p>      <p align="center">&nbsp;</p>     <p align="center"><font face="verdana" size="2"><b>S. Calixto and F.J. Sanchez&#45;Marin</b></font></p>      <p align="justify">&nbsp;</p>     <p align="justify"><font face="verdana" size="2"><i>Centro de investigaciones en &oacute;ptica, Apartado Postal 1&#45;948, Le&oacute;n Guanajuato, C.P. 37000, M&eacute;xico,</i> e&#45;mail: <a href="mailto:scalixto@foton.cio.mx">scalixto@foton.cio.mx</a></font></p>      <p align="justify">&nbsp;</p>     <p align="justify"><font face="verdana" size="2">Recibido el 10 de diciembre de 2002.    <br> Aceptado el 4 de abril de 2003.</font></p>      ]]></body>
<body><![CDATA[<p align="justify">&nbsp;</p>     <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>     <p align="justify"><font face="verdana" size="2">Fiber ends are irradiated by a focused CO<sub>2</sub> beam causing material to melt. Surface tension shapes the melted material into a spherical microlens that remains joined to the fiber. Such lenses can be used to form images or to focus light. Back focal distances and other parameters of the lenses have been measured.</font></p>      <p align="justify"><font face="verdana" size="2"><b>Keywords:</b> Microlenses.</font></p>      <p align="justify">&nbsp;</p>     <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>      <p align="justify"><font face="verdana" size="2">Los extremos de fibras (&oacute;pticas fueron iluminados con luz enfocada de un laser de CO<sub>2</sub>. El resultado fue la fundici&oacute;n de esos extremos. Debido a la tensi&oacute;n superficial el material fundido se convirti&oacute; en una microlente esf&eacute;rica que quedo adherida a la fibra. Tales lentes se pueden utilizar para formar im&aacute;genes o enfocar luz. Las distancias focales posteriores y otros par&aacute;metros de las lentes fabricadas han sido medidos.</font></p>      <p align="justify"><font face="verdana" size="2"><b>Palabras clave:</b> Micro&#45;&oacute;ptica.</font></p>     <p align="justify"><font face="verdana" size="2">PACS: 42.70.Ce; 42.79.Bh</font></p>      <p align="justify">&nbsp;</p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2"><a href="/pdf/rmf/v49n5/v49n5a6.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>      <p align="justify">&nbsp;</p>     <p align="justify"><font face="verdana" size="2"><b>References</b></font></p>      <!-- ref --><p align="justify"><font face="verdana" size="2">1. <i>Micro&#45;optics elements, systems and applications,</i> Ed. H.P. Herzig (Taylor and Francis, Philadelphia, 1998).    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8297341&pid=S0035-001X200300050000600001&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. N.F. Borrelli, <i>Microoptics technology fabrication</i> (Marcel Dekker, New York 1999).    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8297343&pid=S0035-001X200300050000600002&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">3. D. Kato, <i>J. Appl. Phys.</i> 44 (1973) 2756.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8297345&pid=S0035-001X200300050000600003&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. R.C. Gonzales and R.E. Woods, <i>Digital image processing</i> (Addison Wesley, Massachusets, 1992)</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=8297347&pid=S0035-001X200300050000600004&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">5. Carmen Menchaca and D. Malacara, <i>Appl. Opt.</i> 25 (1986) 3008.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8297348&pid=S0035-001X200300050000600005&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. F.C. Allard, <i>Fiber Optics handbook for engineers and scientists</i> (Mcgraw&#45;Hill, New york, 1990) p. 3.80.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8297350&pid=S0035-001X200300050000600006&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>      ]]></body><back>
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</article>
