Current Modulation of Plasmonic Nanolasers by Breaking Reciprocity on Hybrid Graphene–Insulator–Metal Platforms
| Autor: | Chang Wei Cheng, Kuo-Ping Chen, Tzy-Rong Lin, Kuo Bin Hong, Shangjr Gwo, Jia Wei Chen, Chu Yuan Hsu, Heng Li, Zhen Ting Huang, Tien-Chang Lu |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
General Chemical Engineering Nanowire General Physics and Astronomy Medicine (miscellaneous) 02 engineering and technology 010402 general chemistry 01 natural sciences Biochemistry Genetics and Molecular Biology (miscellaneous) nonreciprocity law.invention symbols.namesake law General Materials Science Plasmon nanolasers Graphene business.industry Communication Nanolaser graphene surface plasmon polaritons General Engineering 021001 nanoscience & nanotechnology Laser Surface plasmon polariton Communications 0104 chemical sciences Reciprocity (electromagnetism) symbols Optoelectronics 0210 nano-technology business Doppler effect |
| Zdroj: | Advanced Science |
| ISSN: | 2198-3844 |
| Popis: | 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 ≈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. Plasmonic nanolasers are incorporated into the hybrid graphene–insulator–metal platform that can break the Lorentz reciprocity by applying external current to graphene in order to actively modulate the laser threshold. Room temperature laser modulation demonstrates that the laser threshold increases by ≈100% with applying 140 mA external current. |
| Databáze: | OpenAIRE |
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