Investigation of SRS conversion of XeCl laser emission in lead vapor,methane, and hydrogen |
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| Authors: | S V Mel’chenko A N Panchenko V F Tarasenko G S Evtushenko |
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| Institution: | (1) Atmospheric Optics Institute, Russian Academy of Sciences, Tomsk;(2) Institute of High-Current Electronics, Siberian Division, Russian Academy of Sciences, 634055 Tomsk, Russia |
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| Abstract: | We have thus optimized the conditions for SRS conversion of XeCl-laser emission in lead vapor, methane, and hydrogen. The
greatest influence on the conversion efficiency is exerted for an SRS cell with lead by the divergence of the pump radiation,
the focusing geometry, and the type of buffer gas. The maximum efficiency with respect to absorbed UV energy was ∼57% when
xenon gas was used as the buffer, corresponding to 85% of the photon efficiency. The converted radiation could be continuously
tuned in the 457.6–459.3 nm band.
Addition of a light gas such as helium or hydrogen to methane raised the efficiency of conversion into Stokes components in
methane to ∼24 %. |
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