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- W2051705076 abstract "Fast optimization algorithms of the design of diffractive optical elements (DOEs) for beam shaping are often based onfast Fourier transform (FFT), and the demand of the sampling theorem must be met when FFT is used to calculate thelight intensity. Limited by the fabricating technology, the pixel size of a DOE cannot be too small. For beam shaping inFresnel diffraction domain, given that the sampling interval of a DOE is fixed, if the diffraction distance is too short, allFFT algorithms would not meet the demand of the sampling theorem, and then the results of beam shaping wouldbecome worse. In this paper, the disadvantages of the FFT algorithms in near Fresnel diffraction domain are discussed,and an area division method is proposed for the DOEs design. The simulation and experimental results show the validityof the proposed area division method." @default.
- W2051705076 created "2016-06-24" @default.
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- W2051705076 date "2013-12-23" @default.
- W2051705076 modified "2023-09-22" @default.
- W2051705076 title "Design of diffractive optical elements for beam shaping in near Fresnel diffraction domain" @default.
- W2051705076 cites W1984884772 @default.
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- W2051705076 doi "https://doi.org/10.1117/12.2036184" @default.
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