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Influence of the size of the grating on Talbot effect
Authors:Shuyun Teng  Tongjun Zhou  Chuanfu Cheng
Institution:College of Physics and Electronics, Shandong Normal University, Jinan 250014, China
Abstract:The Fresnel theory of the Talbot effect of the grating is reviewed in this paper, and the general formula of the Fresnel diffraction of the grating with finite aperture size is presented. The aperture effect of the grating on the Talbot image is discussed and a number of numerical calculations are performed. The variation rule of the diffraction intensity distribution at the Talbot distance with the aperture size of the grating and the case at different Talbot distances are obtained through the calculations, and the corresponding explanations of these phenomena are given in this paper. We think that these discussions provide the theoretic basis for the practical application of the Talbot effect of the actual grating.
Keywords:Talbot effect  Fresnel diffraction  Diffraction of grating
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