Scaling Rules of SERS Intensity

被引：48

作者：

Nishijima, Yoshiaki ^{[1
]}

Hashimoto, Yoshikazu ^{[1
]}

Rosa, Lorenzo ^{[2
,3
]}

Khurgin, Jacob B. ^{[4
]}

Juodkazis, Saulius ^{[2
,3
]}

机构：

[1] Yokohama Natl Univ, Grad Sch Engn, Dept Elect & Comp Engn, Hodogaya Ku, Yokohama, Kanagawa 2408501, Japan

[2] Swinburne Univ Technol, Ctr Microphoton, Fac Sci Engn & Technol, Hawthorn, Vic 3122, Australia

[3] ANFF, Melbourne Ctr Nanofabricat, Clayton, Vic 3168, Australia

[4] Johns Hopkins Univ, Dept Elect & Comp Engn, Baltimore, MD 21218 USA

来源：

ADVANCED OPTICAL MATERIALS | 2014年 / 2卷 / 04期

基金：

澳大利亚研究理事会;

关键词：

NANOPARTICLES; ENHANCEMENT; FIELD; FABRICATION; FACILE; ARRAYS;

D O I：

10.1002/adom.201300493

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An intricate relationship is revealed between the intensity of surface-enhanced Raman scattering (SERS) and the optical extinction. The unusual trends of SERS intensity decrease while the extinction increases observed in experiments is fully explained for the first time. The SERS intensity is well known to be strongly correlated with the extinction at excitation and Stokes wavelengths, but the dependence is more involved than the simple product of the two extinction enhancements. The radiative and nonradiative losses, different for different Stokes wavelengths, strongly affect the relationship between SERS and extinction. Dye molecules are shown experimentally and numerically to experience different local field enhancements for the different Raman modes, and a simple qualitative analytical description of this universal phenomenon is provided here.

引用

页码：382 / 388

页数：7

共 32 条

[1] Laser fabricated ripple substrates for surface-enhanced Raman scattering [J].