Design of phase plates for shaping partially coherent beams by simulated annealing |
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Authors: | Li Jian-Long Lü Bai-Da |
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Institution: | Institute of Laser Physics and Chemistry, Sichuan
University, Chengdu 610064, China |
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Abstract: | Taking the Gaussian Schell-model beam as a typical example of
partially coherent beams, this paper applies the simulated annealing
(SA) algorithm to the design of phase plates for shaping partially
coherent beams. A flow diagram is presented to illustrate the
procedure of phase optimization by the SA algorithm. Numerical
examples demonstrate the advantages of the SA algorithm in shaping
partially coherent beams. An uniform flat-topped beam profile with
maximum reconstruction error RE<1.74% is achieved. A further
extension of the approach is discussed. |
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Keywords: | partially coherent beam phase
plate simulated annealing (SA) beam shaping |
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