Enhancement and extinction effects in surface-enhanced stimulated Raman spectroscopy

被引：9
|
作者：
Chng, B. X. K. [1 ,2 ]
van Dijk, T. [1 ]
Bhargava, R. [1 ,3 ]
Carney, P. S. [1 ,2 ]
机构：
[1] Univ Illinois, Beckman Inst Adv Sci & Technol, Urbana, IL 61801 USA
[2] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA
[3] Univ Illinois, Dept Bioengn, Urbana, IL 61801 USA
来源：
PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2015年 / 17卷 / 33期
关键词：
SCATTERING; PARTICLES; PROBES; MODEL; SERS;
D O I：
10.1039/c4cp05089d
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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.
引用
收藏
页码：21348 / 21355
页数：8
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