Polarization-Independent Filter Based on 2-D Crossed Grating Under Oblique Incidence

The existing polarization-insensitive filters based on two dimensional (2-D) grating are mostly under normal incidence. However, in filtering optical devices, the normal incidence regime is usually avoided because it requires the use of beam separators which yields a loss of efficiency. Herein, we p...

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Bibliographic Details
Main Authors: Danyan Wang, Qingkang Wang, Zhongqiu Zhan
Format: Article
Language:English
Published: IEEE 2018-01-01
Series:IEEE Photonics Journal
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8466960/