Stimulated anti-Stokes Raman scattering with Bessel beams in hydrogen gas

Abstract

Stimulated anti-Stokes Raman scattering experiments were performed with a Bessel pump beam in hydrogen gas in the pressure range from $p=6\times {10}^5$ to $5\times {10}^6 \mathrm{Pa}.$ The interrelation between two conical Stokes modes and several anti-Stokes far-field rings could be explained if we take into account planar transverse wave-vector matching only. Planar and nonplanar transverse and longitudinal wave-vector matching are discussed in detail. The experiments are compared with numerical solutions of the coupled equations for Stokes and anti-Stokes fields.

© 2003 Optical Society of America

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