基于亚波长光栅的宽带聚焦反射器

2018 Asia Communications and Photonics Conference (ACP) Pub Date : 2018-10-01 DOI:10.1109/ACP.2018.8595928

Shuo Wang, X. Duan, Kai Liu, Yongqing Huang, X. Ren

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引用次数: 0

摘要

我们设计了一种基于圆形二维亚波长光栅(2D SWG)的六边形晶格的反射器，该反射器具有高反射率、偏振无关性和聚焦能力。将聚焦反射器设计在绝缘体上硅(SOI)晶圆上，应用于蘑菇台面光电探测器，可同时提高带宽和效率。设计了直径为16um、焦距为6μm的聚焦反射器，可实现波长为1550nm的正常入射光聚焦。

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Broadband focusing reflectors based on subwavelength gratings

we have designed a reflector based on the hexagonal lattice of circular two-dimensional subwavelength gratings (2D SWG), which characterize high-reflectivity, polarization-independence and the ability of focusing. The focusing reflector has designed on a silicon-on-insulator (SOI) wafer to apply in mushroom-mesa photodetector to increase bandwidth as well as efficiency simultaneously. The focusing reflector with a diameter of 16um and a focal length of 6μm has been designed, which achieves normal incident light focusing at wavelength 1550nm.

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2018 Asia Communications and Photonics Conference (ACP)

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