Guided-mode resonances in multimode planar periodic waveguides

被引:1
|
作者
Sun, Tianyu [1 ,2 ]
Jin, Yunxia [1 ]
Shao, Jianda [1 ]
Fan, Zhengxiu [1 ]
机构
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China
[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
基金
中国国家自然科学基金;
关键词
DIFFRACTION GRATINGS; OBLIQUE-INCIDENCE; FILTERS; DESIGN;
D O I
10.3788/COL20100806.0557
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Using the effective medium theory and the waveguide eigenvalue equation, we design a multhriode planar periodic waveguide. When a plane wave illuminates the grating at the designed angle and wavelength, more than one leaky modes are excited coincidentally. Then the reflection efficiency around this designed angle and wavelength is investigated using a rigorous coupled wave analysis formulation and a gap of reflection peaks is found. Electric field distributions reveal that this high reflectivity gap is due to the coupling between these two coincidentally excited leaky modes.
引用
收藏
页码:557 / 559
页数:3
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