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Proceedings Paper

Super-high enhancement of surface enhanced Raman scattering substrate via resonance coupling
Author(s): Wenxue Li; Zhisen Jiang; Lin Pang
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Paper Abstract

Raman spectroscopy provides vibration and rotation modes of the molecule, and directly reflects the molecular structure of the analyte. Surface enhanced Raman spectroscopy may be applied to practical applications because greater Raman scattering cross section. This paper proposed a large-area nanoslit array Surface Enhanced Raman Scattering (SERS) substrate which is cost effective. By exciting two resonance modes and coupling them together simultaneously, a strong local electromagnetic field was obtained. Up to 108 Raman signals enhancement factor was achieved. Down to 10-15 M minimum detection concentration was achieved. This substrate can be used as surface plasmonic resonance (SPR). Super-high electromagnetic field enhancement effect also can improve the sensitivity of SPR detection.

Paper Details

Date Published: 21 February 2020
PDF: 4 pages
Proc. SPIE 11257, Plasmonics in Biology and Medicine XVII, 1125716 (21 February 2020);
Show Author Affiliations
Wenxue Li, Sichuan Univ. (China)
Zhisen Jiang, Sichuan Univ. (China)
Lin Pang, Sichuan Univ. (China)

Published in SPIE Proceedings Vol. 11257:
Plasmonics in Biology and Medicine XVII
Tuan Vo-Dinh; Ho-Pui A. Ho; Krishanu Ray, Editor(s)

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