Abstract

GARCIA ARTHUR, M.A.; RANGEL ROJO, R.; JAMASBI, N.  and  MOHEBI, M.. Diseño y construcción de un autocorrelador de pulsos de femtosegundos usando absorción de dos fotones en un diodo luminiscente. Rev. mex. fis. [online]. 2003, vol.49, n.3, pp.258-263. ISSN 0035-001X.

In this work, we present the design and construction of a femtosecond laser pulse autocorrelator, based on the two-photon absorption process in a light emitting diode (LED). Compared with traditional autocorrelators based on nonlinear crystals, this autocorrelator has the advantages of lower cost and greater ease of alignment. The intensity and interferometric autocorrelation traces obtained with this device for a titanium-sapphire laser with pulses that are less than 100 fs long, are also presented.

Keywords : Ultrashort pulses; two-photon absorption; autocorrelation.

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