期刊
IEEE PHOTONICS TECHNOLOGY LETTERS
卷 28, 期 14, 页码 1529-1532出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2016.2556220
关键词
Metamaterials; magnetic field enhancement; magnetic plasmons; optical cavity mode; optical strong coupling; Rabi-type splitting
资金
- State Key Laboratory of Millimeter Waves [K201412]
- Natural Science Foundation of Zhejiang Province [LY14A040004]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20133223120006, 20123223120003]
- National Natural Science Foundation of China [11304159, 11104136, 11464019, 61372045]
The authors theoretically present a powerful method to enhance and modify the magnetic resonances in metamaterials by strongly coupling them to the optical modes of Fabry-PErot (FP) cavities. Strong coupling between magnetic plasmons (MPs) and optical cavity modes is observed, manifested by the large anticrossing of the resonant positions in the reflection spectra. It results in two branches of hybridized MP modes with a Rabi-type splitting as large as 78 meV. The maximal magnetic field intensity achieved in the metamaterials with an FP cavity is enhanced greatly and an enhancement factor > 3 is observed compared with that achieved by the bare metamaterials (without thin metallic mirror). This has the potential applications in the magnetic nonlinearity and magnetic sensors.
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