Plasmonic Brewster Angle: Broadband Extraordinary Transmission through Optical Gratings
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Author/Creator ORCID
Date
2011-03-23
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Citation of Original Publication
Andrea Alù et al., Plasmonic Brewster Angle: Broadband Extraordinary Transmission through Optical Gratings, Phys. Rev. Lett., Vol. 106, Iss. 12 (2011), https://doi-org/10.1103/PhysRevLett.106.123902
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This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
Public Domain Mark 1.0
This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
Subjects
Abstract
Extraordinary optical transmission through metallic gratings is a well established effect based on the collective resonance of corrugated screens. Being based on plasmonic resonances, its bandwidth is inherently narrow, in particular, for thick screens and narrow apertures. We introduce here a different mechanism to achieve total transmission through an otherwise opaque screen, based on an ultrabroadband tunneling that can span from dc to the visible range at a given incidence angle. This phenomenon effectively represents the equivalent of Brewster transmission for plasmonic and opaque screens.