Fast Analysis for the Focusing of a Laser Beam with Ampl itude Modulation and Phase Fluctuation Through an Aperture Lens*，成果详细信息-中国科技论文在线

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期刊论文

Fast Analysis for the Focusing of a Laser Beam with Ampl itude Modulation and Phase Fluctuation Through an Aperture Lens*

张彬， ZHANG Bin ， CHU Xiaoliang ， LI Qiang

Vol. B11, No.5 CHINESE JOURNAL OF LASERS October, 2002，-0001，（）：

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摘要/描述

Based on the t reatment that a rectangular function can be expanded into an approximate sum of complex Gaussian functions with finite numbers, the analytical expression for the focusing intensity dist ribution of a laser beam with amplitude modulation (AM) and phase fluctuation (PF) through an aperture lens is derived. The typical numerical examples are given and compared with those obtained from numerically integral calculation. The results show that our method can significantly improve the numerical calculation efficiency.

关键词: laser beams with amplitude modulations ( ， AMs) ， and phase fluctuations ( ， PFs) ， , ， aperture lens, ， complex Gaussian function, ， numerical calculation efficiency

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