Improved short-pulse pumping of stimulated raman scattering in lead vapor

Larry R. Marshall; James A. Piper

doi:10.1109/3.60908

Improved short-pulse pumping of stimulated raman scattering in lead vapor

Larry R. Marshall^*, James A. Piper

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Improved efficiency for short pulse SRS in Pb vapor is obtained using accumulation of gain between a closely-spaced pulse pair. The peak power conversion efficiency of the delayed pulse is increased to 40%, in contrast to 15% for a single pulse. Numerical modeling gives good agreement with observation, and suggests that this enhancement is caused by the continued presence of coherent excitation produced by the first pulse. The dependence of the enhancement in delayed-pulse efficiency upon Xe buffer-gas pressure in the Pb-vapor cell is attributed to changes in the transient response time T2 of the Pb medium with Xe pressure.

Original language	English
Pages (from-to)	1827-1832
Number of pages	6
Journal	IEEE Journal of Quantum Electronics
Volume	26
Issue number	10
DOIs	https://doi.org/10.1109/3.60908
Publication status	Published - Oct 1990

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AB - Improved efficiency for short pulse SRS in Pb vapor is obtained using accumulation of gain between a closely-spaced pulse pair. The peak power conversion efficiency of the delayed pulse is increased to 40%, in contrast to 15% for a single pulse. Numerical modeling gives good agreement with observation, and suggests that this enhancement is caused by the continued presence of coherent excitation produced by the first pulse. The dependence of the enhancement in delayed-pulse efficiency upon Xe buffer-gas pressure in the Pb-vapor cell is attributed to changes in the transient response time T2 of the Pb medium with Xe pressure.

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Improved short-pulse pumping of stimulated raman scattering in lead vapor

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