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This article is cited in 20 scientific papers (total in 20 papers)
Nonlinear optical phenomena
Properties of self-focusing of elliptic beams
V. P. Kandidov, V. Yu. Fedorov Lomonosov Moscow State University, Faculty of Physics
Abstract:
Stationary self-focusing of collimated elliptic Gaussian beams is studied numerically. It is shown that the critical self-focusing power increases with increasing the axial ratio of the initial elliptic cross section. Self-focusing is accompanied by oscillations of the beam transverse size caused by the competition between the diffraction-limited divergence and nonlinear compression. As the power of the beam with the axial ratio a/b≥3 increases, aberration self-focusing occurs, at which, after the formation and competition of several intensity maxima in the beam cross section, a global maximum appears at the beam centre, which forms a nonlinear focus. The approximation formula for the self-focusing distance is generalised to elliptic beams.
Received: 20.04.2004 Revised: 23.08.2004
Citation:
V. P. Kandidov, V. Yu. Fedorov, “Properties of self-focusing of elliptic beams”, Kvantovaya Elektronika, 34:12 (2004), 1163–1168 [Quantum Electron., 34:12 (2004), 1163–1168]
Linking options:
https://www.mathnet.ru/eng/qe2730 https://www.mathnet.ru/eng/qe/v34/i12/p1163
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Abstract page: | 359 | Full-text PDF : | 203 | First page: | 1 |
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