Reformulation of the lamellar grating problem through the concept of adaptive spatial resolution

被引：140
|
作者：
Granet, G [1 ]
机构：
[1] Univ Clermont Ferrand 2, Lab Sci & Mat Elect & Automat, CNRS, Unite Rech Associee 6602, F-63177 Aubiere, France
来源：
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 1999年 / 16卷 / 10期
关键词：
D O I：
10.1364/JOSAA.16.002510
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The lamellar grating problem is reformulated through the concept of adaptive spatial resolution. We introduce a new coordinate system such that spatial resolution is increased around the discontinuities of the permittivity function. We derive a new eigenproblem that we solve by using Fourier expansions for both the field and the coefficients of Maxwell's equations. We provide numerical evidence that highly improved convergence rates can be obtained. (C) 1999 Optical Society of America [S0740-3232(99)00910-2].
引用
收藏
页码：2510 / 2516
页数：7
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