Generation of tunable superchiral spot in metal-insulator-metal waveguide

作     者：庄涛 胡海峰 詹其文 Tao Zhuang;Haifeng Hu;Qiwen Zhan

作者机构：School of Optical-Electrical and Computer EngineeringUniversity of Shanghai for Science and TechnologyShanghai 200093China Zhangjiang LaboratoryShanghai 201204China Shanghai Key Laboratory of Modern Optical SystemUniversity of Shanghai for Science and TechnologyShanghai 200093China 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2023年第21卷第1期

页      面：125-130页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(Nos.62075132 and 92050202) Natural Science Foundation of Shanghai(No.22ZR1443100) 

主　　题：circular dichroism superchiral spot radially polarized beam metal-insulator-metal waveguide 

摘      要：The chiral feature of an optical field can be evaluated by the parameter of g-factor enhancement,which is helpful to enhance chiroptic signals from a chiral *** this work,the superchiral spot has been theoretically proposed in metal-insulator-metal *** g-factor enhancement of the superchiral spot can be enhanced by 67-fold more than that of circularly polarized light,and the spot is confined in the deep wavelength scale along each spatial ***,the position of the superchiral spot can be tuned by manipulating the incident *** tunable superchiral spot may find applications in chiral imaging and sensing.