| H-C-G光束通过光阑-像散透镜的焦开关现象 |
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| 引用本文： | 周彩玉,陶向阳.H-C-G光束通过光阑-像散透镜的焦开关现象[J].莆田学院学报,2007,14(5):32-34,44. |
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| 作者姓名： | 周彩玉 陶向阳 |
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| 作者单位： | 1. 莆田学院,电子信息工程系,福建,莆田,351100
2. 江西师范大学,理电学院,江西,南昌,330022 |
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| 摘 要： | 研究了H-C-G光束通过光阑-像散透镜分离系统的焦开关现象,尤其研究了透镜的像散对焦开关的影响,结果表明:当系统参数和光束参数满足一定的条件时,H-C-G光束通过光阑-像散透镜分离系统后,可能出现两个焦开关现象,甚至可能有三个焦开关的出现。
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| 关 键 词： | H-C-G光束 光阑-像散透镜分离系统 像散系数 焦移 焦开关 |
| 文章编号： | 1672-4143（2007）05-0032-03 |
| 修稿时间： | 2007-04-04 |
Focal Switch Phenomenon of H-C-G Beams Passing Through a System with the Aperture and Astigmatic Lens Separated |
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| ZHOU Cai-yu,TAO Xiang-yang.Focal Switch Phenomenon of H-C-G Beams Passing Through a System with the Aperture and Astigmatic Lens Separated[J].journal of putian university,2007,14(5):32-34,44. |
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| Authors: | ZHOU Cai-yu TAO Xiang-yang |
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| Abstract: | We investigate the focal switch phenomenon of a H-C-G beams passing through a system with the aperture and astigmatic lens separated. The influence of astigmatic on the focal switch is analyzed in detail. When the parameters of system and beams are satisfied with a certain condition,the results demonstrate that,there possibly appears the phenomenon of the dual focal switches or three focal switches. |
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| Keywords: | Hermite-Cosine-Gaussian beams astigmatic coefficient aperture-lens astigmatic separated system focal shift focal switch |
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