NUMERICAL SIMULATION OF WAVE FRONT CONVERSION FOR ANDELSCHTAMM-BRILLOUIN SCATTERING IN FOCUSED BEAMS

Yu. F. Kiryanov, G. G. Kochemasov, N. V. Maslov, I. V. Shestakova
VANT. Ser. Metodiki i Programmy Chislennogo Resheniya Zadach Matematicheskoy Fiziki 1988. Вып.2. С. 72-77.

      We describe the conversion of coordinate and function systems where Hermitian-Gaussian mode envelope in laser radiation does not change in the propagation direction. Numerical integration uses a finite-difference scheme with improved dispersion properties. The accuracy of Stokes wave calculations is analyzed for a given pumping wave. For divergence slightly exceeding the limit 1 ≤ θ_L / θ_D ≤ 10 in focused beams wave front conversion accuracy is theoretically calculated in the presence of forced Mandelschtamm-Bri1louin scattering.