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A near-transparent 90 $^{\circ}$ polarization rotator with an array of L-shaped holes inside a glass cube

Key Laboratory of Intelligent Computing & Signal Processing, Ministry of Education, Anhui University, Hefei, Anhui 230039, China

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Yan Zhao

Department of Physics, Anhui Medical University, Hefei, Anhui 230032, China

E-mail Address: zhaoyan@ahmu.edu.cn

Corresponding author.

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, and

He-Ping Lu

Key Laboratory of Intelligent Computing & Signal Processing, Ministry of Education, Anhui University, Hefei, Anhui 230039, China

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https://doi.org/10.1142/S0217984916502596Cited by:5 (Source: Crossref)

Abstract

We report a near-transparent 90 $^{\circ}$ polarization rotator by using a single-layer microstructure. The co-polarization light has been suppressed by using destructive interference. At the same time, the transmission of cross-polarization light has been improved with inference effect between surface plasmon polaritons (SPPs) and localized surface plasmons (LSPs). This efficient polarization rotation mechanism may be very useful in designing polarization rotators.

Keywords:

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