Cylindrical vector beam generator on photonic crystal cavity integrated with metal split ring nanoresonators

作     者：姬应科 谢鑫 方亮 朱奕松 赵建林 甘雪涛 Yingke Ji;Xin Xie;Liang Fang;Yisong Zhu;Jianlin Zhao;Xuetao Gan

作者机构：Key Laboratory of Light-Field Manipulation and Information AcquisitionMinistry of Industry and Information Technologyand Shaanxi Key Laboratory of Optical Information TechnologySchool of Science and TechnologyNorthwestern Polytechnical UniversityXi'an 710129China Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu 610054China 

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

年 卷 期：2023年第21卷第3期

页      面：140-145页

核心收录：

学科分类：0810[工学-信息与通信工程] 080904[工学-电磁场与微波技术] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0804[工学-仪器科学与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：supported by the National Key Research and Development Program of China(Nos.2022YFA1404800 and 2017YFA0303800) the National Natural Science Foundation of China(Nos.91950119,61905196,and 62105263) the Key Research and Development Program in Shaanxi Province of China(No.2020JZ-10) the Fundamental Research Funds for the Central Universities(Nos.310201911cx032,3102019JC008,and 310202011qd002) 

主　　题：vector beams photonic crystal plasmonics integrated photonics 

摘      要：We propose a chip-integratable cylindrical vector[CV]beam generator by integrating six plasmonic split ring resonators[SRRs]on a planar photonic crystal[PPC]*** employed PPC cavity is formed by cutting six adjacent air holes in the PPC center,which could generate a CV beam with azimuthally symmetric *** further integrating six SRRs on the structure defects of the PPC cavity,the polarizations of the CV beam could be tailored by controlling the opening angles of the SRRs,e.g.,from azimuthal to radial *** mechanism is governed by the coupling between the resonance modes in SRRs and PPC cavity,which modifies the far-field radiation of the resonance mode of the PPC cavity with the SRR as the *** integration of SRRs also increases the coupling of the generated CV beam with the free-space optics,such as an objective lens,promising its further applications in optical communication,optical tweezer,imaging,etc.