期刊
ADVANCED SCIENCE
卷 7, 期 24, 页码 -出版社
WILEY
DOI: 10.1002/advs.202001823
关键词
graphene; nanolasers; nonreciprocity; surface plasmon polaritons
资金
- Research Team of Photonic Technologies and Intelligent Systems at National Chiao Tung University by the Ministry of Education (MOE) in Taiwan
- Minister of Science and Technology (MOST) in Taiwan [MOST 106-2221-E-009-112-MY3, MOST 107-2119-M009-016, MOST 107-2221-E-009-046 -MY3, MOST 108-2923-E-009-003 -MY3, MOST 108-2221-E-019-055-MY3, MOST 108-2221-E-019-057-MY3]
A hybrid graphene-insulator-metal (GIM) platform is proposed with a supported surface plasmon polariton (SPP) wave that can be manipulated by breaking Lorentz reciprocity. The ZnO SPP nanowire lasers on the GIM platforms are demonstrated up to room temperature to be actively modulated by applying external current to graphene, which transforms the cavity mode from the standing to propagation wave pattern. With applying 100 mA external current, the laser threshold increases by approximate to 100% and a 1.2 nm Doppler shift is observed due to the nonreciprocal propagation characteristic. The nanolaser performance also depends on the orientation of the nanowire with respect to the current flow direction. The GIM platform can be a promising platform for integrated plasmonic system functioning laser generation, modulation, and detection.
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