エラーリダクション法によるフレネルペアの位相回復特性

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タイトル別名
  • Phase Retrieval characteristics of Fresnel Pairs by Error-Reduction Method
  • エラーリダクションホウ ニヨル フレネルペア ノ イソウ カイフク トクセイ

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In order to develop a design method for a laser-beam-forming optical system, we evaluated the error-reduction algorithm as the means of the phase retrieval method. We calculate the phase, profiles for beam transformation from a circular Gaussian beam to a circular uniform beam and a rectangular uniform beam. The calculated phase profiles are almost the same as those calculated by the stationary phase method, and the phase calculation error is equal to about one wavelength. We clarified that the intensity profile error results from the saturation of error reduction of the error-reduction algorithm.

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