Emission pattern of surface-enhanced Raman scattering from single nanoparticle-film junction

Emission pattern of surface-enhanced Raman scattering from single nanoparticle-film junction

Emission pattern of surface-enhanced Raman scattering (SERS) from the junction of single nanoparticle and a metal film was experimentally demonstrated. The presence of a thin metal film enables the excitation of surface plasmon polaritons (SPPs) to greatly improve the excitation efficiency of SERS,...

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Bibliographic Details
Main Authors: Du, Luping, Tang, Dingyuan, Yuan, Guanghui, Wei, Shibiao, Yuan, Xiaocong
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2013
Subjects:
DRNTU::Engineering::Electrical and electronic engineering
Online Access:https://hdl.handle.net/10356/101173
http://hdl.handle.net/10220/10993
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Institution: Nanyang Technological University
Language: English
Description
Summary:Emission pattern of surface-enhanced Raman scattering (SERS) from the junction of single nanoparticle and a metal film was experimentally demonstrated. The presence of a thin metal film enables the excitation of surface plasmon polaritons (SPPs) to greatly improve the excitation efficiency of SERS, which is subsequently coupled back to SPPs and re-radiates into the substrate side with higher refractive index at SPP excitation angle. The so-called surface plasmon coupled emission can serve as a high sensitivity detection tool for SERS and particularly for the tip-enhanced Raman spectroscopy.

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