Enhancing Coherent Light-Matter Interactions through Microcavity-Engineered Plasmonic Resonances

被引：150
作者：
Peng, Pai [1 ,2 ,3 ,7 ]
Liu, Yong-Chun [4 ,5 ]
Xu, Da [1 ,2 ,3 ]
Cao, Qi-Tao [1 ,2 ,3 ]
Lu, Guowei [1 ,2 ,3 ,6 ]
Gong, Qihuang [1 ,2 ,3 ,6 ]
Xiao, Yun-Feng [1 ,2 ,3 ,6 ]
机构：
[1] Peking Univ, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China
[2] Peking Univ, Sch Phys, Beijing 100871, Peoples R China
[3] Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China
[4] Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China
[5] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
[6] Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China
[7] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA
来源：
PHYSICAL REVIEW LETTERS | 2017年 / 119卷 / 23期
基金：
中国国家自然科学基金; 国家重点研发计划;
关键词：
RAMAN-SCATTERING; SINGLE PHOTONS; NANOANTENNAS; ENHANCEMENT; MOLECULE; FLUORESCENCE; LINEWIDTH; EMISSION; EXCITONS; DECAY;
D O I：
10.1103/PhysRevLett.119.233901
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Quantum manipulation is challenging in localized-surface plasmon resonances (LSPRs) due to strong dissipations. To enhance quantum coherence, here we propose to engineer the electromagnetic environment of LSPRs by placing metallic nanoparticles (MNPs) in optical microcavities. An analytical quantum model is first built to describe the LSPR-microcavity interaction, revealing the significantly enhanced coherent radiation and the reduced incoherent dissipation. Furthermore, when a quantum emitter interacts with the LSPRs in the cavity-engineered environment, its quantum yield is enhanced over 40 times and the radiative power over one order of magnitude, compared to those in the vacuum environment. Importantly, the cavity-engineered MNP-emitter system can enter the strong coupling regime of cavity quantum electrodynamics, providing a promising platform for the study of quantum plasmonics, quantum information processing, precise sensing, and spectroscopy.
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页数：6
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