We have observed stimulated rotational Raman scattering (SRRS) from para-H2 pumped by a CO2 TEA laser operating on the strong P- and R-branch transitions of both the 9.4- and 10.6-μm bands. Small signal gain for the Stokes wave in excess of 80 dB has been obtained for TEM00 pump powers of 8.5 MW in a multiple-pass gain cell cooled to liquid-nitrogen temperatures.
© 1978 Optical Society of America
Original Manuscript: July 17, 1978
Published: October 1, 1978
P. Rabinowitz, A. Stein, R. Brickman, and A. Kaldor, "Stimulated rotational Raman scattering from para-H2 pumped by a CO2 TEA laser," Opt. Lett. 3, 147-148 (1978)