The effect of stimulated Mandelstam–Brillouin scattering on angular divergence of a laser beam in the air


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A quasi-steady-state approximation for the problem of stimulated Mandelstam–Brillouin scattering (SMBS) in the air as in a multimode acoustic medium is formulated. In this approximation, a numerical solution of the equation for the envelope of the complex light field amplitude is implemented. Based on a series of performed numerical experiments, it is established that the SMBS effect can lead to a discernible increase in the angular divergence of laser beams during the propagation of a sufficiently powerful laser radiation with a wavelength λ = 1.315 μm in air.

Sobre autores

A. Bulygin

V.E. Zuev Institute of Atmospheric Optics, Siberian Branch

Autor responsável pela correspondência
Email: b.a.d@iao.ru
Rússia, Tomsk, 634055

A. Zemlyanov

V.E. Zuev Institute of Atmospheric Optics, Siberian Branch

Email: b.a.d@iao.ru
Rússia, Tomsk, 634055

A. Ignat’ev

NPO Almaz

Email: b.a.d@iao.ru
Rússia, Moscow, 125190

V. Morozov

NPO Almaz

Email: b.a.d@iao.ru
Rússia, Moscow, 125190

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