Controlling surface enhanced Raman scattering using grating-type patterned nanoporous gold substrates

被引：20

作者：

Jiao, Yang ^{[1
]}

Ryckman, Judson D. ^{[1
]}

Koktysh, Dmitry S. ^{[2
,3
]}

Weiss, Sharon M. ^{[1
,3
]}

机构：

[1] Vanderbilt Univ, Dept Elect Engn & Comp Sci, Nashville, TN 37235 USA

[2] Vanderbilt Univ, Dept Chem, Nashville, TN 37235 USA

[3] Vanderbilt Univ, Vanderbilt Inst Nanoscale Sci & Engn, Nashville, TN 37235 USA

来源：

OPTICAL MATERIALS EXPRESS | 2013年 / 3卷 / 08期

基金：

美国国家科学基金会;

关键词：

PLASMON-RESONANCE; EXCITATION; SPECTROSCOPY; FILMS;

D O I：

10.1364/OME.3.001137

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate the effect of grating design on surface enhanced Raman scattering (SERS) intensity using patterned nanoporous gold (P-NPG) films. The SERS response is systematically engineered by tuning the parameters of gratings imprinted on the nanoporous gold films, including grating period, duty cycle, and height. Compared to conventional NPG films, where the localized surface plasmon dominates the strong SERS response, the significantly enhanced SERS response from our P-NPG structures primarily arises from efficient activation of a surface plasmon polariton and its coupling with the localized surface plasmon mode. The P-NPG SERS substrates exhibit large area uniform enhancement factors near 10(8). (C) 2013 Optical Society of America

引用

页码：1137 / 1148

页数：12

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