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基于古斯-汉欣位移的双通道窄带滤波器
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内容简介：本文利用光束在对称金属包覆波导表面反射得到的异常大的古斯一汉欣（Goos-Hatnchen）位移，通过实验实现了双通道窄带滤波．当入射激光波长为859，60nm时，两通道滤波的峰值位置分别为859．604nm和859．688nm，峰值半宽（FWHM）为0．036nm，而消光比达到15．3dB．峰值波长可通过改变入射角或小孔位置实现调谐．
Abstract：We propose a double-channel narrowband filter based on anomalous large Goos-Hanchen shift reflected from a symmetrical metal-cladding optical waveguide. We demonstrate that two filtering peaks are 859. 604nm and 859. 688nm respectively. The 3 dB bandwidth is found to be 0. 036 nm with an extinction ratio of 15.3dB at a light wavelength of 859.60nm. The filtering peaks can be tuned by choosing an appropriate incident angle and a aperture position.
作者：陈凡, 郝军, 李红根, 曹庄琪,
关键词：古斯-汉欣(Goos-Hiinchen)位移, 光波导, 双通道, 滤波器
Abstract：We propose a double-channel narrowband filter based on anomalous large Goos-Hanchen shift reflected from a symmetrical metal-cladding optical waveguide. We demonstrate that two filtering peaks are 859. 604nm and 859. 688nm respectively. The 3 dB bandwidth is found to be 0. 036 nm with an extinction ratio of 15.3dB at a light wavelength of 859.60nm. The filtering peaks can be tuned by choosing an appropriate incident angle and a aperture position.
作者：陈凡, 郝军, 李红根, 曹庄琪,
关键词：古斯-汉欣(Goos-Hiinchen)位移, 光波导, 双通道, 滤波器
