Parity-time electromagnetic diodes in a two-dimensional nonreciprocal photonic crystal

Article

关键词: SINGLE DIRAC CONE;   

DOI  :  10.1103/PhysRevB.83.075117

来源: SCIE

【 摘 要 】

We propose a kind of electromagnetic (EM) diode based on a two-dimensional nonreciprocal gyrotropic photonic crystal. This periodic microstructure has separately broken symmetries in both parity (P) and time-reversal (T) but obeys parity-time (PT) symmetry. This kind of diode could support bulk one-way propagating modes either for group velocity or phase velocity with various types of negative and positive refraction. This symmetry-broken system could be a platform to realize abnormal photoelectronic devices, and it may be analogous to an electron counterpart with one-way features.

【 授权许可】

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