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Proceedings Paper

Analysis on light intensity distribution of diffraction of "unequal slit width" gratings
Author(s): Xiue Wang; Zhengping Hong; Xiong Li
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Paper Abstract

Taking gratings with periodically varying slit width as two groups of diffraction hinge unit, light radiates on the gratings, each diffraction unit produces diffraction respectively, and then it is equivalent to interference of two beams of coherent light. Using the theory of light diffraction and interference, by means of the diffraction light intensity distribution function of equal slit width, the light intensity distribution law of Fraunhofer diffraction is analyzed for transmission grating of periodically varying slit width. Based on the discussion of general results obtained, the diffraction light intensity distribution and light-shade stripe conditions are obtained for gratings with special slit width and nick width, the diffraction pattern and light intensity distribution curves are plotted through computer simulation.

Paper Details

Date Published: 17 November 2010
PDF: 7 pages
Proc. SPIE 7848, Holography, Diffractive Optics, and Applications IV, 784822 (17 November 2010); doi: 10.1117/12.869650
Show Author Affiliations
Xiue Wang, Beijing Technology and Business Univ. (China)
Zhengping Hong, Shandong Normal Univ. (China)
Xiong Li, Beijing Technology and Business Univ. (China)


Published in SPIE Proceedings Vol. 7848:
Holography, Diffractive Optics, and Applications IV
Yunlong Sheng; Chongxiu Yu; Linsen Chen, Editor(s)

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