Two-dimensional complex parity-time-symmetric photonic structures
Date
2015-02
Editor(s)
Advisor
Supervisor
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Source Title
Physical Review A: covering atomic, molecular, and optical physics and quantum information
Print ISSN
2469-9926
Electronic ISSN
2469-9934
Publisher
American Physical Society
Volume
91
Issue
2
Pages
023825-1 - 023825-5
Language
English
Type
Journal Title
Journal ISSN
Volume Title
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3
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Abstract
We propose a simple realistic two-dimensional complex parity-time-symmetric photonic structure that is described by a non-Hermitian potential but possesses real-valued eigenvalues. The concept is developed from basic physical considerations to provide asymmetric coupling between harmonic wave components of the electromagnetic field. The structure results in a nonreciprocal chirality and asymmetric transmission between in- and out-coupling channels into the structure. The analytical results are supported by a numerical study of the Bloch-like mode formations and calculations of a realistic planar semiconductor structure. © 2015 American Physical Society.