Abstract

The short-pulse conversion efficiency of stimulated Raman scattering in Pb vapor is increased from 15% to 35% by using a novel technique that employs a closely spaced pair of pump pulses. The second pulse scatters off the coherent excitation induced in the medium by the first pulse, with a resultant enhancement in efficiency. To our knowledge these results give the first observation of such long-lived cooperative phenomena in stimulated Raman scattering. We have also observed this phenomenon in H₂ and show that this technique is readily applicable to other Raman-active media.

© 1990 Optical Society of America

Coherent phenomena between incoherent pulses

L. R. Marshall and J. A. Piper
Opt. Lett. 16(15) 1150-1152 (1991)

Frequency pulling of stimulated Raman scattering in microdroplets

H.-B. Lin, J. D. Eversole, and A. J. Campillo
Opt. Lett. 15(7) 387-389 (1990)

Stimulated Raman scattering and coherent anti-Stokes Raman spectroscopy in high-pressure oxygen

W. R. Lempert, B. Zhang, R. B. Miles, and J. P. Looney
J. Opt. Soc. Am. B 7(5) 715-721 (1990)

Efficient Raman conversion of XeCl-laser radiation in metal vapors

R. Burnham and N. Djeu
Opt. Lett. 3(6) 215-217 (1978)

Experimental demonstration of a Raman scattering detector based on laser-enhanced ionization

B. W. Smith, P. B. Farnsworth, J. D. Winefordner, and N. Omenetto
Opt. Lett. 15(14) 823-825 (1990)