Issue 33, 2015
From the journal:

Physical Chemistry Chemical Physics

Enhancement and extinction effects in surface-enhanced stimulated Raman spectroscopy

B. X. K. Chng,ab   T. van Dijk,a   R. Bhargavaac  and  P. S. Carney*ab  

* Corresponding authors

a Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, 405/N Mathews Ave, Urbana, USA
E-mail: carney@illinois.edu

b Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, USA

c Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, USA

Abstract

We address the optical physics of surface-enhanced stimulated Raman spectroscopy (SESRS) from the microscopic to macroscopic scales to provide experimental design criteria in colloidal-suspension SESRS. The nanoparticles that provide local field enhancement also extinguish the Raman signal. We compute the total Raman signal detected from a suspension of Raman-active molecules and nanoparticles due to the cumulative effects of enhancement and extinction and find optimum operating parameters for pump frequency and nanoparticle concentration.

Graphical abstract: Enhancement and extinction effects in surface-enhanced stimulated Raman spectroscopy

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Article information

DOI
https://doi.org/10.1039/C4CP05089D
Article type
Paper
Submitted
04 Nov 2014
Accepted
02 Mar 2015
First published
03 Mar 2015

Phys. Chem. Chem. Phys., 2015,17, 21348-21355

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Enhancement and extinction effects in surface-enhanced stimulated Raman spectroscopy

B. X. K. Chng, T. van Dijk, R. Bhargava and P. S. Carney, Phys. Chem. Chem. Phys., 2015, 17, 21348 DOI: 10.1039/C4CP05089D

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