High-sensitivity surface plasmon resonance spectroscopy based on a metal nanoslit array

被引：24

作者：

Jung, Yun Suk

Sun, Zhijun

Wuenschell, Jeff

Kim, Hong Koo ^{[1
]}

Kaur, Palwinder

Wang, Lei

Waldeck, David

机构：

[1] Univ Pittsburgh, Dept Elect & Comp Engn, Pittsburgh, PA 15261 USA

[2] Univ Pittsburgh, Petersen Inst NanoSci & Engn, Pittsburgh, PA 15261 USA

[3] Univ Pittsburgh, Dept Chem, Pittsburgh, PA 15260 USA

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 24期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.2209717

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have chemically modified metal nanoslit array surfaces with alkanethiol self-assembled monolayers and have characterized the resulting spectral shift of optical transmission. Adsorption of a self-assembled monolayer (1.5 nm thick) on a silver nanoslit array (slit width of 30-50 nm and grating period of 360 nm) is found to cause an 11 nm redshift of the main transmission peak. Strong confinement of optical fields in the narrow slit region allows sensitive transduction of surface modification into a shift of surface plasmon resonance wavelength. (c) 2006 American Institute of Physics.

引用

页数：3

共 19 条

[11] Chain length dependence and sensing capabilities of the localized surface plasmon resonance of silver nanoparticles chemically modified with alkanethiol self-assembled monolayers [J].