Interference approach applied to dual-grating dielectric resonant grating reflection filters

被引：6
|
作者：
Jacob, DK [1 ]
Dunn, SC [1 ]
Moharam, MG [1 ]
机构：
[1] Univ Cent Florida, Sch Opt, Ctr Res & Educ Opt & Lasers, Orlando, FL 32816 USA
来源：
OPTICS LETTERS | 2001年 / 26卷 / 22期
关键词：
Diffraction gratings - Light interference - Light modulation - Light reflection - Resonance;
D O I：
10.1364/OL.26.001749
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The resonant mechanisms associated with dual-grating dielectric resonant grating reflection filters are described by use of an interference approach. These structures consist of two modulated regions of equal period separated by a higher-index film region. We show that the spectral linewidth is dependent on the separation between the modulated regions and can range from theoretically zero to approximately four times what would be obtained by use of a single-grating geometry. (C) 2001 Optical Society of America.
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页码：1749 / 1751
页数：3
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