Second-harmonic generation of limited diffraction beams

作者:Ding Desheng; Huang Jin H*
来源:Journal of Optics A: Pure and Applied Optics , 2007, 9(12): 1131-1135.
DOI:10.1088/1464-4258/9/12/003

摘要

This paper presents an analytical result concerning second-harmonic generation of a general limited diffraction beam in nonlinear media. The result is based on quasilinear solutions of the Khokhlov-Zabolotskaya-Kuznetsov nonlinear wave equation. It is shown that second-harmonic generation by the nonlinear interaction of two arbitrary Bessel beams gives a nearly radially limited diffraction beam. For an arbitrary limited diffraction beam from the linear superposition of basis mode Bessel beams, results also indicate that the second-harmonic beam remains an almost radially or transversely limited diffraction beam.

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