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《Physics Experimentation》 2015-11
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Distribution of Fresnel diffraction field of square girdle calculated using different FFT algorithm

HAN Zhen-hai;School of Physics and Mechanical & Electrical Engineering,Hexi University;  
Based on scalar diffraction theory and fast Fourier transform,a computer simulation experiment was carried out on the diffraction field of square girdle illuminated by plane wave.In the experiment,three different FFT methods were used to compare and analyze the corresponding results,and the experimental results were compared with the actual results of the diffraction experiments,and characteristic distance criterion was verified.
【CateGory Index】: O436.1;O438.2
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