Optimized design of phase plates for shaping partially coherent beams based on the adaptive genetic algorithm | Zendy

Jianlong Li | Zendy; Lü Bai-Da | Zendy

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Optimized design of phase plates for shaping partially coherent beams based on the adaptive genetic algorithm

Author(s) -

Jianlong Li,

Lü Bai-Da

Publication year - 2008

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.57.3006

Subject(s) - coherence (philosophical gambling strategy) , genetic algorithm , beam (structure) , optics , gaussian , phase (matter) , computer science , algorithm , gaussian beam , physics , quantum mechanics , machine learning

Based on the adaptive genetic algorithmthe optimized design of phase plates for shaping partially coherent beams is performed. Taking the Gaussian Schell-mode beam as an examplethe analytical expression for the far-field intensity is derived and the phase plate capable of transforming GSM beams to flat-topped ones is optimized. The effect of spatial coherence on the beam shaping is illustrated by a numerial example. Comparison of the results with the previous work shows the advantages of the adaptive genetic algorithm in shaping partially coherenct beams.

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