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ICOP & ICPET 2015, 21 - : 137-140 Back to browse issues page
Theoretical treatment of the Lau Effect Based on Fresnel Diffraction integral and Fourier Series
Mohammad Abolhassani Dr *
assistant Prof. Arak University
Abstract:   (1698 Views)
A theoretical explanation of the Lau effect is presented based on Fresnel diffraction theory and Fourier series representation of a grating function. It is shown that, in the case of amplitude diffracting grating, for some gratings separations which are equal to an even multiple of an elementary distance, the intensity distribution function at output plane in Lau setup is similar to transmittance of the diffracting grating. For the gratings distances equal to an odd multiple of the elementary distance the output intensity functions are periodic ones with only even frequencies.
Keywords: The Lau effect, Diffraction grating
Full-Text [PDF 225 kb]   (667 Downloads)    
Type of Study: Research | Subject: Special
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Abolhassani M. Theoretical treatment of the Lau Effect Based on Fresnel Diffraction integral and Fourier Series. ICOP & ICPET. 2015; 21 :137-140
URL: http://opsi.ir/article-1-496-en.html


Volume 21 - Back to browse issues page
انجمن اپتیک و فوتونیک ایران Optics and Photonics Society of Iran
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