Two-dimensional complex parity-time-symmetric photonic structures
Physical Review A - Atomic, Molecular, and Optical Physics, vol.91, no.2, 2015 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 91 Issue: 2
- Publication Date: 2015
- Doi Number: 10.1103/physreva.91.023825
- Journal Name: Physical Review A - Atomic, Molecular, and Optical Physics
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Open Archive Collection: AVESIS Open Access Collection
- TED University Affiliated: No
Abstract
© 2015 American Physical Society.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.