Abstract

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 $4.5 \mathit{\mu }\mathrm{m}$ was achieved by use of the output of a near-infrared pulsed laser $(1.6 \mathit{\mu }\mathrm{m}$, 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.

© 2003 Optical Society of America

Solid hydrogen Raman shifter for the mid-infrared range (4.4–8 μm)

Kirill E. Kuyanov, Takamasa Momose, and Andrey F. Vilesov
Appl. Opt. 43(32) 6023-6029 (2004)

Observation of Raman conversion for 70-fs pulses in KGd(WO₄)₂ crystal in the regime of impulsive stimulated Raman scattering

A. S. Grabtchikov, R. V. Chulkov, V. A. Orlovich, M. Schmitt, R. Maksimenko, and W. Kiefer
Opt. Lett. 28(11) 926-928 (2003)

Highly efficient 1.3-µm second-Stokes PbWO₄ Raman laser

Gad M. A. Gad, Hans J. Eichler, and Alexander A. Kaminskii
Opt. Lett. 28(6) 426-428 (2003)

Near-quantum-limit efficiency of picosecond stimulated Raman scattering in BaWO₄ crystal

Pavel Černý and Helena Jelínková
Opt. Lett. 27(5) 360-362 (2002)

Polarization of multiple rotational Raman sidebands from hydrogen gas by delayed four-wave Raman mixing in the femtosecond regime

Hiroyuki Kawano, Kenichi Ishikawa, Akira Suda, and Katsumi Midorikawa
Opt. Lett. 27(21) 1917-1919 (2002)