Large-scale and uniform Raman substrate of coupled Ag grating with Ag triangle arrays | |
Li, Kuanguo1,2,3; Liu, Guangju1,2; Ghafoor, Sonia4,5; Dai, Yanqiu4,5; Huang, Wanxia1,2; Zhang, Fabao1,2; Lu, Yonghua4,5 | |
作者部门 | 瞬态光学研究室 |
2019-03 | |
发表期刊 | JOURNAL OF OPTICS |
ISSN | 2040-8978;2040-8986 |
卷号 | 21期号:3 |
产权排序 | 1 |
摘要 | Vertically coupled plasmonic structures have been widely used in optical applications due to its enhanced electromagnetic fields in the gaps between metallic nanostructures. In this paper, a large-scale vertically coupled structure composed of the Ag triangle array (AgTA) on Ag grating separated by a nanometric dielectric layer is fabricated by nanosphere lithography incorporated with photolithography. Thanks to the effective surface plasmon polaritons excitation on the Ag grating, a significant surface enhanced Raman spectroscopy (SERS) effect arises from a strongly enhanced local electric field within the tiny gaps between the AgTA and Ag grating, which is verified by experiment and theoretical simulations. The as-proposed SERS substrate exhibits a nice uniformity with the relative standard deviation of about 10.5%, leading to excellent reliability for Raman detection. The simple fabrication of the large-area, productive, and inexpensive vertically coupled plasmonic structure can be a potential candidate for SERS applications. |
关键词 | plasmonic interaction surface enhanced Raman scattering nanosphere lithography Ag grating |
DOI | 10.1088/2040-8986/ab0273 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000458922900001 |
出版者 | IOP PUBLISHING LTD |
EI入藏号 | 20191506771926 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/31173 |
专题 | 瞬态光学研究室 |
通讯作者 | Li, Kuanguo; Lu, Yonghua |
作者单位 | 1.Anhui Normal Univ, Coll Phys & Elect Informat, Wuhu 241000, Anhui, Peoples R China 2.Anhui Normal Univ, Anhui Prov Key Lab Optoelect Mat Sci & Technol, Wuhu 241000, Anhui, Peoples R China 3.Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian 710068, Shanxi, Peoples R China 4.Univ Sci & Technol China, Dept Opt & Opt Engn, Hefei 230026, Anhui, Peoples R China 5.Univ Sci & Technol China, Anhui Key Lab Optoelect Sci & Technol, Hefei 230026, Anhui, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Kuanguo,Liu, Guangju,Ghafoor, Sonia,et al. Large-scale and uniform Raman substrate of coupled Ag grating with Ag triangle arrays[J]. JOURNAL OF OPTICS,2019,21(3). |
APA | Li, Kuanguo.,Liu, Guangju.,Ghafoor, Sonia.,Dai, Yanqiu.,Huang, Wanxia.,...&Lu, Yonghua.(2019).Large-scale and uniform Raman substrate of coupled Ag grating with Ag triangle arrays.JOURNAL OF OPTICS,21(3). |
MLA | Li, Kuanguo,et al."Large-scale and uniform Raman substrate of coupled Ag grating with Ag triangle arrays".JOURNAL OF OPTICS 21.3(2019). |
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文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Large-scale and unif(1553KB) | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 请求全文 |
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