Photonic-crystal fibers (PCFs) offer attractive and practical recipes for the enhancement of nonlinear-optical interactions of ultrashort pulses. In this work, it is demonstrated that these fibers provide a high efficiency of frequency upconversion of regeneratively amplified femtosecond pulses of a Cr:forsterite laser, permitting the generation of subpicosecond anti-Stokes pulses with a smooth temporal envelope and a linear positive chirp, ideally suited for femtosecond coherent nonlinear spectroscopy. These pulses from a PCF were cross-correlated in our experiments with the femtosecond second-harmonic output of the Cr:forsterite laser in toluene solution, used as a test object, in boxcars geometry to measure the spectra of coherent anti-Stokes Raman scattering (CARS) of toluene molecules.


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    Title :

    Applications of photonic-crystal fibers in nonlinear spectroscopy


    Contributors:


    Publication date :

    2005-01-01


    Size :

    718458 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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