Unidirectional Nonlinear PT-symmetric Optical Structures
arXiv:1005.5189 · doi:10.1103/PhysRevA.82.043803
Abstract
We show that non-linear optical structures involving a balanced gain-loss profile, can act as unidirectional optical valves. This is made possible by exploiting the interplay between the fundamental symmetries of parity (P) and time (T), with optical nonlinear effects. This novel unidirectional dynamics is specifically demonstrated for the case of an integrable PT-symmetric nonlinear system.
6 pages,5 figures
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- Stable dark solitons in PT-symmetric dual-core waveguides
- Discrete solitons in PT-symmetric lattices
- Symmetry breaking and restoring wave transmission in diode-antidiode double chains
- Metric operators for non-Hermitian quadratic su(2) Hamiltonians
- Nonlinear stationary states in PT-symmetric lattices