Improvement of the coordinate transformation method for surface-relief gratings with sharp edges

被引:71
作者
Li, LF [1 ]
Chandezon, J [1 ]
机构
[1] UNIV CLERMONT FERRAND,URA CNRS 1793,LAB SCI & MAT ELECT & AUTOMAT,F-63177 CLERMONT FERRAN,FRANCE
来源
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 1996年 / 13卷 / 11期
关键词
D O I
10.1364/JOSAA.13.002247
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The coordinate transformation method for modeling surface-relief gratings is reformulated with use of the recent results [J. Opt. Sec. Am. A 13, 1870 (1996)] on the Fourier factorization of products that contain discontinuous periodic functions. The matrix operator of the eigenvalue problem in the traditional formulation is modified following the correct Fourier factorization procedures. In addition, a new and simpler matrix operator is derived. Both the modified old operator and the new operator greatly improve the convergence of the coordinate transformation method for gratings whose profiles have sharp edges. (C) 1996 Optical Society of America.
引用
收藏
页码:2247 / 2255
页数:9
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