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12 March 2001 Ultrabroadening of light beam spatial spectrum when self-focusing
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Abstract
New nonlinear equations for the dynamics of spatial spectrum of a self-focusing monochromatic wave in a medium with cubic nonlinearity is derived in the nonparaxial approximation. The formation of optical beams with cross section on the order of a wavelength is considered. Backward self- reflection is found to be the fundamental cause for the limitation of optical self-focusing.
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Sergei A. Izyurov, Sergei A. Kozlov, and Constantin R. Simovski "Ultrabroadening of light beam spatial spectrum when self-focusing", Proc. SPIE 4352, Laser Optics 2000: Ultrafast Optics and Superstrong Laser Fields, (12 March 2001); https://doi.org/10.1117/12.418806
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