Abstract

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

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