期刊
PHYSICAL REVIEW B
卷 89, 期 24, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.89.245433
关键词
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资金
- National Key Basic Research Program [2013CB328700]
- National Natural Science Foundation of China [91121018, 11374025, 91221304, 11121091]
- NFFTBS [J1030310, J1103205]
- Royal Society
- EPSRC
- ERC
- Engineering and Physical Sciences Research Council [EP/G02216X/1, EP/I023186/1] Funding Source: researchfish
- EPSRC [EP/I023186/1, EP/G02216X/1] Funding Source: UKRI
We propose an initial-state-dependent quantum-dot gain without population inversion in the vicinity of a resonant metallic nanoparticle. The gain originates from the hybridization of a dark plasmon-exciton and is accompanied by efficient energy transfer from the nanoparticle to the quantum dot. This hybridization of the dark plasmon-exciton, attached to the hybridization of the bright plasmon-exciton, strengthens nonlinear light-quantum emitter interactions at the nanoscale, thus the spectral overlap between the dark and the bright plasmons enhances the gain effect. This hybrid system has potential applications in ultracompact tunable quantum devices.
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