Two-dimensional diffraction on a cylinder induced by a laser beam in a nonlinear gradient medium |
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Authors: | A. K. Sukhorukova and A. P. Sukhorukov |
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Affiliation: | 1.Moscow State University,Moscow,Russia |
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Abstract: | A wave theory was developed and a numerical simulation performed of the diffractive flow of a signal wave around a negative inhomogeneity induced by a cylindrical pump beam in nonlinear medium while keeping both waves in the potential well. It was shown that a broad pump beam reflects a narrow signal beam. A nonlinear waveguide (a dark soliton) is described as well. These phenomena can be observed in Bose-Einstein condensate (BEC) and in a gradient waveguide. |
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