Abstract
It is shown that the size of the focal spot has a substantial influence on the dynamics of Mandel’shtam-Brillouin induced scattering (MBIS) for the laser beam power near critical for striction self-focusing. For small focal spots MBIS suppresses self-focusing. An increase in the size of the focal spot leads to growth of the MBIS pulsations and the steady-state setup time. For large enough focal spots MBIS arises in the form of regular intense spikes. Physical processes shaping the dynamics of MBIS are discussed.
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Zh. Éksp. Teor. Fiz. 115, 1950–1960 (June 1999)
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Andreev, N.E., Chegotov, M.V. & Gorbunov, L.M. Dynamics of Mandel’shtam-Brillouin induced scattering during self-focusing of a laser beam. J. Exp. Theor. Phys. 88, 1066–1071 (1999). https://doi.org/10.1134/1.558893
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DOI: https://doi.org/10.1134/1.558893