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Bessel–Gaussian Beams in an Inhomogeneous Medium |
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| Authors: | T M Korneichik A P Khapalyuk |
| Institution: | (1) A. N. Sevchenko Institute of Applied Physical Problems, Belarusian State University, 7 Kurchatov Str., Minsk, 220064, Belarus |
| Abstract: | Solutions of the parabolic equation which describes propagation of Bessel–Gaussian beams along the axis of an axially-symmetric medium having quadratic inhomogeneity have been obtained and investigated. It is shown that in the process of propagation the parameters of the beams change nonmonotonically. In the case of a transparent medium the beams periodically recover their initial structure. |
| Keywords: | Gaussian beam Bessel– Gaussian beam quadratically inhomogeneous medium diffraction-free beam Helmholtz equation parabolic equation |
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