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

Journal Article · Tue Feb 15 00:00:00 EST 2011 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.83.075117· OSTI ID:21538124

Cheng, He; Minghui, Lu; Yanfeng, Chen ^[1]; Xin, Heng ^[2]; Liang, Feng ^[3]

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1. National Laboratory of Solid State Microstructures and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093 (China)
2. Bio-Rad Laboratories, Hercules, California 94547 (United States)
3. Department of Electrical Engineering, California Institute of Technology, Pasadena, California 91125 (United States)

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.

• OSTI ID: 21538124
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Vol. 83, Issue 7; Other Information: DOI: 10.1103/PhysRevB.83.075117; (c) 2011 American Institute of Physics; ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRYSTALS
ELECTROMAGNETIC RADIATION
ELECTRONS
MICROSTRUCTURE
PARITY
PERIODICITY
PHASE VELOCITY
REFRACTION
SYMMETRY
SYMMETRY BREAKING
TWO-DIMENSIONAL CALCULATIONS
ELEMENTARY PARTICLES
FERMIONS
LEPTONS
PARTICLE PROPERTIES
RADIATIONS
VARIATIONS
VELOCITY