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Transverse-electric Brewster effect enabled by nonmagnetic two-dimensional materials

Author(s)
Chen, Hongsheng; Lin, Xiao; Shen, Yichen; Kaminer, Ido Efraim; Soljacic, Marin
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Abstract
Discovered in the 19th century, the Brewster effect is known to occur for transverse-magnetic waves in regular optical dielectrics; however, it is believed to arise for transverse-electric (TE) waves only in systems with magnetic responses, i.e., nonunity effective relative permeability. This paper introduces a scheme to realize the TE Brewster effect in a homogeneous dielectric interface without magnetic responses, by adding ultrathin two-dimensional (2D) materials such as graphene. In particular, the effect remains even for waves approaching normal incidence, spanning from terahertz to visible frequencies. In contrast to the conventional Brewster effect, the graphene-assisted TE Brewster effect is asymmetric, and can be achieved only when the incidence is from the higher-refractive-index side. Moreover, graphene layers can tailor a total-internal-reflection dielectric interface into zero reflection, accompanied by perfect absorption. This control over TE waves enabled by ultrathin 2D materials may lead to a variety of applications, such as atomically thin absorbers, polarizers, and antireflection coating.
Date issued
2016-08
URI
http://hdl.handle.net/1721.1/110297
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review A
Publisher
American Physical Society
Citation
Lin, Xiao; Shen, Yichen; Kaminer, Ido; Chen, Hongsheng and Soljačić, Marin. "Transverse-electric Brewster effect enabled by nonmagnetic two-dimensional materials." Physical Review A 94, 023836 (August 2016): 1-8 © 2016 American Physical Society
Version: Final published version
ISSN
2469-9926
2469-9934

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