Surface-Enhanced Hyper-Raman Scattering Elucidates the Two-Photon Absorption Spectrum of Rhodamine 6G

被引：32

作者：

Milojevich, Chris B. ^{[1
]}

Silverstein, Daniel W. ^{[2
]}

Jensen, Lasse ^{[2
]}

Camden, Jon P. ^{[1
]}

机构：

[1] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA

[2] Penn State Univ, Dept Chem, University Pk, PA 16802 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2013年 / 117卷 / 06期

基金：

美国国家科学基金会;

关键词：

OPTICAL-DATA STORAGE; PUSH-PULL CHROMOPHORES; RESONANCE RAMAN; PICOSECOND LASER; EXCITATION; SPECTROSCOPY; FLUORESCENCE; SILVER; DYES; WAVELENGTH;

D O I：

10.1021/jp3094098

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：

The surface-enhanced hyper-Raman (SEHRS) spectra of Rhodamine 6G (R6G) are measured for two different excitation energies: similar to 25 000 cm(-1) (similar to 810 nm) and similar to 19 000 cm(-1) (1030 nm). The collected spectra are compared to time-dependent density functional theory simulations of the resonance hyper-Raman spectra for the same excitation energies. The analysis of molecular orbital changes in these nonlinear transitions elucidates the mechanism of vibronic enhancement. This analysis is used to elucidate features in the two-photon absorption spectra of R6G.

引用

页码：3046 / 3054

页数：9

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