期刊
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
卷 117, 期 2, 页码 451-454出版社
SPRINGER
DOI: 10.1007/s00339-014-8680-0
关键词
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资金
- NSFC [6130106, 61271080, 61071007]
- RFDP [20110091110030, 20100091120045]
- STP of Jiangsu Province [BK2012722]
- Jiangsu Key Laboratory of Advanced Techniques for Manipulating Electromagnetic Waves
We studied how the constitution parameters and applied bias magnetic field influence the bandwidth and frequency tunability of the one-way transmission (OWT) caused by magnetic surface plasmon resonance of the magnetic photonic crystals (MPC). We found that wide-band OWT could be obtained using ferrite rods with larger normalized radius and suppressing the bulk modes of MPC in the frequencies where the edge and bulk modes coexist. We verified that bias magnetic field tunes the frequencies of OWT but has little effects on its bandwidth by experiments, and a simple way is proposed to suppress the bulk modes by introducing air defect near the edge of the MPC and experimentally demonstrated its effectiveness. This work provides a way toward practical applications for wide-band tunable one-way devices.
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