Abstract

Most investigations of polarizers consider a normal angle of incidence only. This paper expands our investigation to also include an oblique angle of incidence. Essential problems are encountered for an oblique angle of incidence: there is an upward shift of the center frequency, and the impedance match gets worse as the angle of incidence increases. So it is apparent that polarizers gradually deteriorate for higher angles of incidence. The new contribution given in this paper is that it considers ways to greatly improve oblique incidence performance. These ways are well confirmed by the design process of the proposed graphene-based polarizer for large-angle oblique incident stability and high efficiency.

© 2019 Optical Society of America

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