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Proceedings Paper

Unidirectional reflectionless propagation in plasmonic waveguide-cavity devices
Author(s): Y. Huang; G. Veronis; C. Min
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Paper Abstract

Recently, unidirectional reflectionlessness was demonstrated in classical photonic structures at optical exceptional points. Here we introduce a non-parity-time symmetric plasmonic waveguide-cavity device consisting of two metaldielectric- metal stub resonators side coupled to a metal-dielectric-metal waveguide. We tune the geometric parameters of the structure to obtain the exceptional point and realize unidirectional reflectionlessness at the optical communication wavelength. We investigate the properties of the plasmonic exceptional point as well as the associated physical effects of level repulsion, crossing and phase transition. We also show that by properly cascading the plasmonic waveguide-cavity structures we can design a wavelength-scale unidirectional plasmonic waveguide perfect absorber.

Paper Details

Date Published: 1 March 2016
PDF: 9 pages
Proc. SPIE 9750, Integrated Optics: Devices, Materials, and Technologies XX, 97500G (1 March 2016); doi: 10.1117/12.2213784
Show Author Affiliations
Y. Huang, Central South Univ. (China)
G. Veronis, Louisiana State Univ. (United States)
C. Min, Shenzhen Univ. (China)

Published in SPIE Proceedings Vol. 9750:
Integrated Optics: Devices, Materials, and Technologies XX
Jean-Emmanuel Broquin; Gualtiero Nunzi Conti, Editor(s)

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