Plasmonic coupling effect in Ag nanocap-nanohole pairs for surface-enhanced Raman scattering

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Publication Type journal article
School or College College of Engineering
Department Electrical & Computer Engineering
Creator Blair, Steven
Other Author Wen, Xiaolei; Xi, Zheng; Jiao, Xiaojin; Yu, Wenhai; Xue, Guosheng; Zhang, Douguo; Lu, Yonghua; Wang, Pei; Ming, Hai
Title Plasmonic coupling effect in Ag nanocap-nanohole pairs for surface-enhanced Raman scattering
Date 2012-01-01
Description A plasmonic coupling structure composed of Ag nanocap-nanohole pairs was fabricated through a novel and facile method. Both surface-enhanced Raman scattering (SERS) measurements and numerical simulations show that the cap-hole system produces much larger electric field enhancement and SERS signal than the isolated structures, which is due to the plasmonic coupling effect between the gap of the cap and the hole. Additionally, the plasmonic enhancement is sensitive to the gap size, which can be controlled by the Ag layer thickness during the evaporation process. A maximum enhancement factor of 1.1×108 can be obtained with optimized gap size.
Type Text
Publisher Springer
First Page 1
Last Page 7
Dissertation Institution University of Utah
Language eng
Bibliographic Citation Wen, X., Xi, Z., Jiao, X., Yu, W., Xue, G., Zhang, D., Lu, Y., Wang, P., Blair, S., & Ming, H. (2012). Plasmonic coupling effect in Ag nanocap-nanohole pairs for surface-enhanced Raman scattering. Plasmonics, 1-7.
Rights Management (c) Springer (The original publication is available at www.springerlink.com)
Format Medium application/pdf
Format Extent 7,369,640 bytes
Identifier uspace,17593
ARK ark:/87278/s61v5zrs
Setname ir_uspace
ID 708174
Reference URL https://collections.lib.utah.edu/ark:/87278/s61v5zrs