埋入式光栅双通道特性及其应用研究

叶燕; 陈林森

光学学报, 2008, 28 (12): 2255, 网络出版: 2008-12-17

埋入式光栅双通道特性及其应用研究

Dual-Channel Characteristic and Application of the Embedded Grating

论文大纲

叶燕 ^*陈林森

作者单位

苏州大学信息光学工程研究所, 江苏苏州 215006

衍射与光栅双通道特性严格耦合波理论埋入式光栅 diffraction and gratings dual channel caracteristic rigorous coupled-wave theory embedded grating

摘要

利用严格耦合波理论分析了埋入式光栅在45°入射时, 垂直和平行于光栅栅线的两个不同观察平面的零级共振反射衍射特性。在垂直于光栅栅线的平面内, TE、TM偏振下零级反射共振波长分别为432 nm和420 nm, 在平行于光栅栅线的平面内, TE、TM偏振下零级反射共振主峰波长分别为623 nm和620 nm, 在两个平面内, 零级共振衍射光的共振波长差别较大, 观察到的衍射光颜色差别明显, 定义为双通道特性并用实验进行证明, 制作了相应的光变色器件。

Abstract

The 0th resonant diffraction characteristic of the embedded grating with incident angle of 45° is analyzed by the rigorous coupled-wave theory. The resonant wavelengths of 0th reflection light are 432 nm and 420 nm for the TE and TM polarization respectively in the plane parallel to the grating vector. The resonant wavelengths of 0th reflection light are 623 nm and 620 nm for the TE and TM polarization respectively in the plane perpendicular to the grating vector. The resonant wavelength of 0th reflection light is far different between these two planes and shows different color. That phenomenon is denoted as dual-channel characteristic and is proved in experiment. The metachromatic device with dual-channel characteristic is made.

参考文献

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叶燕, 陈林森. 埋入式光栅双通道特性及其应用研究[J]. 光学学报, 2008, 28(12): 2255. Ye Yan, Chen Linsen. Dual-Channel Characteristic and Application of the Embedded Grating[J]. Acta Optica Sinica, 2008, 28(12): 2255.

埋入式光栅双通道特性及其应用研究

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