Surface lattice resonance of circular nano-array integrated on optical fiber tips  

作　　者：吴坚 叶高杰 庞修洋 阚雪芬 陆炎 史健 俞强 殷澄 王贤平 Jian Wu;Gao-Jie Ye;Xiu-Yang Pang;Xuefen Kan;Yan Lu;Jian Shi;Qiang Yu;Cheng Yin;Xianping Wang(College of Advanced Interdisciplinary Studies,Nanhu Laser Laboratory,Hunan Provincial Key Laboratory of High Energy Laser Technology,National University of Defense Technology,Changsha 410073,China;College of Internet of Things Engineering,Hohai University,Changzhou 213022,China;School of Transportation Engineering,Jiangsu Shipping College,Nantong 226010,China;Jiangxi Key Laboratory of Photoelectronics and Telecommunication,College of Physics and Communication Electronics,Jiangxi Normal University,Nanchang 330022,China;i-Lab&Key Laboratory of Nanodevices and Applications&Key Laboratory of Nanophotonic Materials and Devices,Suzhou Institute of Nano-Tech and Nano-Bionics,Chinese Academy of Sciences,Suzhou 215123,China)

机构地区：[1]College of Advanced Interdisciplinary Studies,Nanhu Laser Laboratory,Hunan Provincial Key Laboratory of High Energy Laser Technology,National University of Defense Technology,Changsha 410073,China [2]College of Internet of Things Engineering,Hohai University,Changzhou 213022,China [3]School of Transportation Engineering,Jiangsu Shipping College,Nantong 226010,China [4]Jiangxi Key Laboratory of Photoelectronics and Telecommunication,College of Physics and Communication Electronics,Jiangxi Normal University,Nanchang 330022,China [5]i-Lab&Key Laboratory of Nanodevices and Applications&Key Laboratory of Nanophotonic Materials and Devices,Suzhou Institute of Nano-Tech and Nano-Bionics,Chinese Academy of Sciences,Suzhou 215123,China

出　　处：《Chinese Physics B》2023年第12期299-304,共6页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No.12174085);the Fundamental Research Funds for the Central Universities (Grant No.B220202018);the Changzhou Science and Technology Program (Grant No.CJ20210130);CAS Key Laboratory of Nanodevices and Applications (Grant No.21YZ03)。

摘　　要：As metallic nanoparticles are arranged to form a 2D periodic nano-array,the coupling of the localized surface plasmonic resonance(LSPR)results in the well-known phenomenon of surface lattice resonances(SLRs).We theoretically investigate the SLR effect of the circular nano-array fabricated on the fiber tips.The difference between the 2D periodic and circular periodic arrays results in different resonant characteristics.For both structures,the resonant peaks due to the SLRs shift continuously as the array structures are adjusted.For some specific arrangements,the circular nano-array may generate a single sharp resonant peak with extremely high enhancement,which originates from the collective coupling of the whole array.More interestingly,the spatial pattern of the vector near-field corresponding to the sharp peak is independent of the polarization state of the incidence,facilitating its excitation and regulation.This finding may be helpful for designing multifunctional all-fiber devices.

关 键 词：fiber tip lattice resonance metallic nanoparticles vector field 

分 类 号：TN253[电子电信—物理电子学]