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Conferences > LS > 2019 > JW4A > JW4A.75

Narrow bandpass optical filter realized by subwavelength grating waveguide coupled with microsphere

Liu Haitao, Zhang Meng, Liu Jiansheng, Zhou Hongwen, Ma Xinxuan, Zhang Yu, and Wan Yuhang

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Abstract

Coupling between an excitation waveguide and a microsphere consisting of diverse materials with a large index difference is realized by using a coupling section with backward scattering grating. Narrow bandpass transmissive filters could be realized.

© 2019 The Author(s)

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