典型文献
Exceptional points and enhanced nanoscale sensing with a plasmon-exciton hybrid system
文献摘要：
Singularities in the spectra of open systems,known as exceptional points(EPs),have been shown to exhibit non-trivial topological properties and enhanced sensitivities.Here,we propose a novel approach to realize the EPs in a plasmon-exciton hybrid system and explore their applications in enhanced nanoscale sensing technology.We consider a plasmon-exciton system composed of a gold nanorod and a monolayer WSe2.By controlling the geometric parameters of the nano-hybrid system,we obtain simultaneous coalescence of the resonance frequencies and loss rates of the hybrid system,which is a unique feature of EPs.Numerical simulations show its application in enhanced nanoscale sensing for environmental refractive indices.Our work opens the way to a new class of sensors based on EP-enhanced sensing,with intrinsic nanoscale sensitivity due to the sub-diffraction-limit size of the plasmon-exciton nano-hybrid system.
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作者姓名：
HONG JIANG;WEIDONG ZHANG;GUOWEI LU;LULU YE;HAI LIN;JINGLIN TANG;ZHAOHANG XUE;ZHENG LI;HAITAN XU;QIHUANG GONG
作者机构：
State Key Laboratory for Mesoscopic Physics,Collaborative Innovation Center of Quantum Matter,Nano-optoelectronics Frontier Center of the Ministry of Education,School of Physics,Peking University,Beijing 100871,China;Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China;Peking University Yangtze Delta Institute of Optoelectronics,Nantong 226010,China;Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen 518055,China;School of Physical Sciences,University of Science and Technology of China,Hefei 230026,China
文献出处：
引用格式：
[1]HONG JIANG;WEIDONG ZHANG;GUOWEI LU;LULU YE;HAI LIN;JINGLIN TANG;ZHAOHANG XUE;ZHENG LI;HAITAN XU;QIHUANG GONG-.Exceptional points and enhanced nanoscale sensing with a plasmon-exciton hybrid system)[J].光子学研究（英文）,2022(02):557-563
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0.593218
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