Analytical study of a flattened Gaussian beam through multi-apertured optical imaging systems of B = 0 |
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Authors: | Baida Lu¨ Xiaoling Ji |
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Affiliation: | (1) Institute of Laser Physics and Chemistry, Sichuan University, Chengdu, 610064, China;(2) State Key Laboratory of Laser Technology (, Huazhong University of Science and Technology), Wuhan, 430074, China; |
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Abstract: | By using the methods of the matrix decomposition and expansion of the hard-edged aperture function into a finite sum of complex Gaussian functions, the recurrence propagation expressions for a flattened Gaussian beam (FGB) through multi-apertured optical imaging systems of B = 0 are derived and illustrated with numerical examples. Comparisons with the straightforward numerical integration of the Collins formula and with the previous work are made. It is shown that the main advantages of our methods and results are the more accuracy and great reduction of computer time. |
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Keywords: | complex Gaussian function flattened Gaussian beam (FGB) multi-apertured optical imaging system recurrence equation |
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