Abstract
Stimulated Raman Scattering (SRS) in solid state materials allows to change laser radiation frequency with the certain energy shift that is determined by the crystal structure of Raman material. Recently spontaneous Raman spectroscopy of various crystalline materials was investigated [1]. This allowed to propose new BaWO4 crystal as a high gain media for SRS. Its Ag mode (925 cm-1) has high peak and integral Raman scattering cross section with narrow linewidth 1.6 cm-1 at room temperature [1]. The steady state Raman gain in BaWO4 crystal measured under pumping with 12 ns pump pulses (λ=532 nm) was found to be 36 cm/GW that was close to record value observed in barium nitrate crystal. The SRS of visible and near IR radiation had high conversion efficiency to the 1st and 2nd Stokes components.
© 2001 EPS
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