| 环形斑激光束在非线性克尔介质中的光束分裂效应 |
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| 引用本文： | 沈常宇. 环形斑激光束在非线性克尔介质中的光束分裂效应[J]. 中国计量学院学报, 2003, 14(4): 271-274 |
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| 作者姓名： | 沈常宇 |
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| 作者单位： | 中国计量学院,光电子研究所,浙江,杭州,310018 |
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| 摘 要： | 通过数值求解非线性Schrodinger方程,详细讨论了环形斑激光束在非线性克尔介质中的传输特性.当入射光超过一定功率时,光束产生多级自聚焦现象;传输过程中光束出现分裂现象,光束分裂的方式、分裂程度与入射光强度有关,并且光束分裂与自聚焦焦点处强度相联系.
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| 关 键 词： | 环形斑激光束 克尔介质 自聚焦 光束分裂 |
| 文章编号： | 1004-1540(2003)04-0271-04 |
Beam-splitting effect of circle spot laser beam in kerr-medium |
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| SHEN Chang-yu. Beam-splitting effect of circle spot laser beam in kerr-medium[J]. Journal of China Jiliang University, 2003, 14(4): 271-274 |
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| Authors: | SHEN Chang-yu |
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| Abstract: | The transmission of circle spot laser beam in Kerr-medium is investigated with solving Schrodinger nonlinear equation numerically. The self-focusing and beam-splitting are observed in the transmission process when the laser beam power exceeds a certain value. The critical power is related with the radius of the circle spot laser beam. It is also discovered that the beam-splitting depends upon the intensity distribution at the focus point in the vertical direction. |
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| Keywords: | circle spot laser beam kerr-medium self-focusing beam-splitting |
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