| Nonparaxial propagation of phase-flipped Gaussian beams |
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| 作者姓名： | 高曾辉 吕百达 |
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| 作者单位： | Key Laboratory of Computational Physics, Yibin
University, Yibin 644000, China；Institute of Optoelectronic Information, Yibin
University, Yibin 644000, China；Institute of Laser Physics and Chemistry, Sichuan
University, Chengdu 610064, China;Institute of Laser Physics and Chemistry, Sichuan
University, Chengdu 610064, China |
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| 基金项目： | Project
supported by the National Natural Science Foundation
of China (Grant No 10574097). |
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| 摘 要： | This paper derives the closed-form expressions for nonparaxial phase flipped Gaussian （PFG） beams propagating in free space, through a knife edge and an aperture, which enable us to study nonparaxial propagation properties of PFG beams and to compare nonparaxial results with paraxial ones. It is found that the f parameter, offsetting distance of the knife edge and truncation parameter affect the nonparaxial beam propagation properties. Only under certain conditions the paraxial approximation is applicable. The results are illustrated by numerical examples.
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| 关 键 词： | 非近轴传播 PFG f参数 抵补距离 |
| 收稿时间： | 2007-04-27 |
| 修稿时间： | 2007-06-25 |
Nonparaxial propagation of phase-flipped Gaussian beams |
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| Gao Zeng-Hui,LU Bai-Da.Nonparaxial propagation of phase-flipped Gaussian beams[J].Chinese Physics B,2008,17(3):943-949. |
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| Authors: | Gao Zeng-Hui LU Bai-Da |
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| Institution: | Institute of Laser Physics and Chemistry, Sichuan
University, Chengdu 610064, China; Key Laboratory of Computational Physics, Yibin
University, Yibin 644000, China；Institute of Optoelectronic Information, Yibin
University, Yibin 644000, China；Institute of Laser Physics and Chemistry, Sichuan
University, Chengdu 610064, China |
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| Abstract: | This paper derives the closed-form expressions for nonparaxial phase
flipped Gaussian (PFG) beams propagating in free space, through a
knife edge and an aperture, which enable us to study nonparaxial
propagation properties of PFG beams and to compare nonparaxial
results with paraxial ones. It is found that the $f$ parameter,
offsetting distance of the knife edge and truncation parameter
affect the nonparaxial beam propagation properties. Only under
certain conditions the paraxial approximation is applicable. The
results are illustrated by numerical examples. |
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| Keywords: | nonparaxial propagation phase
flipped Gaussian (PFG) beam $f$ parameter offsetting distances |
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