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Waveguide-coupled localized surface plasmon resonance for surface-enhanced Raman scattering: Antenna array as emitters

文献类型：期刊论文

作者Xu, Shuping2; Liu, Yu1; Xu, Weiqing2; Wang, Hailong2; Tian, Yu2
刊名SENSORS AND ACTUATORS B-CHEMICAL
出版日期2019-02-01
卷号280页码:144-150
关键词LSPR SERS Waveguide Antenna Nanohemisphere Nanocone
ISSN号0925-4005
DOI10.1016/j.snb.2018.10.028
通讯作者Xu, Shuping(xusp@jlu.edu.cn)
英文摘要Metal nanostructures with the configurations of narrow gaps or sharp tips attract plenty of researchers due to their superior performances in plasmonic sensing and surface-enhanced spectroscopy. Too many attempts were devoted for manufacturing elaborate structures to achieve controllable and better performance. However, the excitation and emission ways for these nanostructures which can more feasibly tune the plasmonic features of these nanostructures are lack of study. In this work, we demonstrate a strategy to obtain the considerable signal amplification by efficiently exciting a nanohemisphere array with dozens of nanometers' gap and a non-sharp nanocone array with different waveguide modes under two polarizations of light in the evanescent field. For the gap-type structure, the TE light is preferred. The enhancement is attributed from the dipolar resonance of nanohemisphere. The best enhancement is achieved on the tip-type nanocone array due to the lightning rod effect under TM polarized light, which allows for the lowest detectable concentration for the Raman signal of 4-mercapto-benzoic acid reaching to 1.0 x 10(-10) M. The waveguide-coupled antenna array has great potential for label-free sensing and detections of macromolecules and biomolecules.
WOS关键词SENSITIVE DETECTION ; SPECTROSCOPY ; NANOPARTICLES ; FILM ; GAP
资助项目National Natural Science Foundation of China[21873039] ; National Natural Science Foundation of China[21573087] ; National Natural Science Foundation of China[21373096] ; National Natural Science Foundation of China[21573092] ; National Natural Science Foundation of China[21603211] ; Jilin Province Young Talent Fund Projects[20180520156JH]
WOS研究方向Chemistry ; Electrochemistry ; Instruments & Instrumentation
语种英语
WOS记录号WOS:000450302300019
出版者ELSEVIER SCIENCE SA
资助机构National Natural Science Foundation of China ; Jilin Province Young Talent Fund Projects
源URL[http://ir.ciomp.ac.cn/handle/181722/60316]  
专题中国科学院长春光学精密机械与物理研究所
通讯作者Xu, Shuping
作者单位1.Chinese Acad Sci, State Key Lab Appl Opt, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Jilin, Peoples R China
2.Jilin Univ, State Key Lab Supramol Struct & Mat, 2699 Qianjin Ave, Changchun 130012, Jilin, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Shuping,Liu, Yu,Xu, Weiqing,et al. Waveguide-coupled localized surface plasmon resonance for surface-enhanced Raman scattering: Antenna array as emitters[J]. SENSORS AND ACTUATORS B-CHEMICAL,2019,280:144-150.
APA Xu, Shuping,Liu, Yu,Xu, Weiqing,Wang, Hailong,&Tian, Yu.(2019).Waveguide-coupled localized surface plasmon resonance for surface-enhanced Raman scattering: Antenna array as emitters.SENSORS AND ACTUATORS B-CHEMICAL,280,144-150.
MLA Xu, Shuping,et al."Waveguide-coupled localized surface plasmon resonance for surface-enhanced Raman scattering: Antenna array as emitters".SENSORS AND ACTUATORS B-CHEMICAL 280(2019):144-150.

入库方式： OAI收割

来源：长春光学精密机械与物理研究所

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