| Structural polarization properties of vector Gaussian beam in the far field |
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| 作者姓名： | 周国泉 倪涌舟 储修祥 |
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| 作者单位： | School of Sciences,Zhejiang Forestry University,Lin＇an 311300,China |
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| 基金项目： | Project supported by the Scientific Research Fund of Zhejiang Provincial Education Department, China （Grant No 20060677）. |
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| 摘 要： | Based on the vector angular spectrum representation of optical beam and the method of stationary phase, the analytical TE and TM terms of vector Gaussian beam have been presented in the far field. By using the local polarization matrix, the polarization properties of the TE and TM terms in the far field are investigated, and it is found that the degree of their polarization is only determined by the spatial location. When the source is completely polarized, the TE and TM terms are both completely polarized in the far field. When the source is completely unpolarized, the TE and TM terms in the far field are partially polarized. The whole beam is also partially polarized except on the propagating axis. Moreover, the degrees of polarization of TE and TM terms are both larger than that of the whole beam.第一段]
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| 关 键 词： | 极化矩阵 极化程度 高斯向量 矢量结构 |
| 文章编号： | 1009-1963/2007/16（11）/3377-05 |
| 修稿时间： | 2007-04-03 |
Structural polarization properties of vector Gaussian beam in the far field |
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| Zhou Guo-Quan,Ni Yong-Zhou and Chu Xiu-Xiang.Structural polarization properties of vector Gaussian beam in the far field[J].Chinese Physics B,2007,16(11):3377-3381. |
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| Authors: | Zhou Guo-Quan Ni Yong-Zhou and Chu Xiu-Xiang |
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| Abstract: | |
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| Keywords: | vector Gaussian beam vectorial structure local polarization matrix degree of polarization |
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