Journal
APPLIED PHYSICS LETTERS
Volume 100, Issue 4, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3679172
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Funding
- NSFC [11004212, 11174309, 60877067, 60938004]
- STCSM [11ZR1443800, 11JC1414500]
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We find the one-way mode (OWM) can be well-confined at the magnetic domain wall by the photonic bandgap of gyromagnetic bulk material. Utilizing the well-confined one-way mode at the domain wall, we demonstrate the photonic one-way waveguide, splitter and bender can be realized with simple structures, which are predicted to be high-efficiency, broadband, frequency-independent, reflection-free, crosstalk-proof, and robustness against disorder. Additionally, we find that the splitter and bender in our proposal can be transformed into each other with magnetic control, which may have great potential applications in all photonic integrated circuit. (C) 2012 American Institute of Physics. [doi:10.1063/1.3679172]
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