| Second—Harmonic Generation of Bessel Beams in Lossy Media |
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| 作者姓名： | 丁德胜 许坚毅 等 |
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| 作者单位： | StateKeyLaboratoryofModernAcoustics,NanjingUniversity,Nanjing210093 |
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| 摘 要： | We present a further analysis for the second-harmonic generation of Bessel beams in lossy media.The emphasis is put on the effect of absorption to the radial pattern of the second-harmonic beam.It is shown that within the absorption length of the second harmonic,the Bessel second-harmonic beam approaches limited diffraction in the radial direction and behaves as in the case of lossless media.
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| 关 键 词： | 固体电介质 Bassal束 二次谐波 |
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