Generation of infrared radiation by stimulated Raman scattering in para-hydrogen crystal at 5 K

We report the preliminary results of our experiments with stimulated Raman scattering in para-hydrogen crystal aimed at developing a continuously tunable laboratory laser source of mid-infrared radiation. With laser pulses at 532 nm, a conversion efficiency for the first Stokes beam of as much as 20...

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Veröffentlicht in:Optics letters 2003-01, Vol.28 (1), p.37
Hauptverfasser: Fushitani, Mizuho, Kuma, Susumu, Miyamoto, Yuuki, Katsuki, Hiroyuki, Wakabayashi, Tomonari, Momose, Takamasa, Vilesov, Andrey F
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Sprache:eng
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Zusammenfassung:We report the preliminary results of our experiments with stimulated Raman scattering in para-hydrogen crystal aimed at developing a continuously tunable laboratory laser source of mid-infrared radiation. With laser pulses at 532 nm, a conversion efficiency for the first Stokes beam of as much as 20% in the forward direction was observed through a single-pass, 5-cm-long crystal. Generation of mid-infrared pulses at 4.5 microm was achieved by use of the output of a near-infrared pulsed laser (1.6 microm, 3 ns), and an absorption spectrum of gaseous CD4 molecules was successfully recorded. These results suggest use of the solid para-hydrogen Raman shifter as a promising light source for mid-infrared spectroscopy.
ISSN:0146-9592
1539-4794
DOI:10.1364/ol.28.000037