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Metamaterial Polarization Beam Splitter: Ultra‐Broadband and Ultra‐Compact On‐Chip Silicon Polarization Beam Splitter by Using Hetero‐Anisotropic Metamaterials (Laser Photonics Rev. 13(4)/2019)
Author(s) -
Xu Hongnan,
Dai Daoxin,
Shi Yaocheng
Publication year - 2019
Publication title -
laser and photonics reviews
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.778
H-Index - 116
eISSN - 1863-8899
pISSN - 1863-8880
DOI - 10.1002/lpor.201970021
Subject(s) - metamaterial , broadband , optics , materials science , optoelectronics , beam splitter , photonics , extinction ratio , polarization (electrochemistry) , laser , wavelength , physics , chemistry
An ultra‐broadband on‐chip silicon polarization beam splitter based on hetero‐anisotropic metamaterials is demonstrated by Yaocheng Shi and co‐workers in article number 1800349 . Sub‐wavelength grating metamaterials are utilized to engineer anisotropy and dispersion. The fabricated device shows low losses of <1 dB, high extinction ratios of >20 dB, and a record working bandwidth of >200 nm.