GUO Xiaojun, CHEN Huan, GUO Lei, ZHANG Zhenglong*, ZHENG Hairong
(School of Physics and Information Technology, Shaanxi Normal University, Xi′an 710119, Shaanxi, China;Xi′an Key Laboratory of Optical Information Manipulation and Augmentation,Xi′an 710119, Shaanxi, China)
Abstract:
Plasmonic cavities can limit the electromagnetic field to the sub-wavelength range and enhance the interaction between light and matter at the nanoscale, leading to optical signal enhancement under the ultra-diffraction limit. Based on the basic principle of the plasmonic cavities, the review introduces the theoretical framework of the interaction between the plasmonic cavities and the quantum emitter, as well as the structure of plasmonic cavities, in order to reveal its advantages of enhancing the interaction of light-matter. Then the plasmonic cavities enhancing the coupling of light and matter from weak to strong is summarized, the advanced research works of surface enhanced Raman scattering and tip enhanced Raman scattering is also introduced. In addition, the physical mechanisms and applications of plasmonic cavity enhancing nonlinear and quantum plasmonic are discussed.Finally,the potential application of the plasmonic cavities in the field of quantum information is prospected.
KeyWords:
surface plasmon; plasmonic cavity; light-matter interactions; enhancement
