Tip-Enhanced Resonance Couplings Revealed by High Vacuum Tip-Enhanced Raman Spectroscopy

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	Tip-Enhanced Resonance Couplings Revealed by High Vacuum Tip-Enhanced Raman Spectroscopy
	Sun, MT ; Zhang, ZL ; Chen, L ; Xu, HX
刊名	ADVANCED OPTICAL MATERIALS
	2013
卷号	1 期号:6 页码:449
ISSN号	2195-1071
通讯作者	Sun, MT (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, POB 603-146, Beijing 100190, Peoples R China.
中文摘要	Tip-enhanced resonance couplings (TERCs) are experimentally revealed by high vacuum tip-enhanced Raman spectroscopy (HV-TERS) and theoretically interpreted. The Fermi resonance and Darling-Dennison resonance are successfully observed in HV-TERS, which are the first overtone (or combinational mode)-fundamental interaction (2: 1 resonance coupling) and the first overtone-first overtone resonant interaction (1: 1 resonance coupling), respectively. The electric field gradient plays an important role on TERCs in HV-TERS at the level of the second-order perturbation theory. The molecular tautomeric effects are also observed from thiourea adsorbed on Ag film in HV-TERS. The reported HERCs can provide a deeper understanding of the importance of molecular anharmonicity in high-order perturbation for TERS. HV-TER spectra provide 'additional' nonlinear Raman peaks, compared with the harmonic zero-order perturbation in HV-TERS, and thus enable ultrasensitive chemical analysis at the nanoscale with more vibrational information.
资助信息	National Basic Research Project of China [2009CB930701]; National Natural Science Foundation of China [90923003, 10874234, 20703064]; Program of Shenyang Key Laboratory of Optoelectronic materials and technology [F12-254-1-00]
语种	英语
公开日期	2014-01-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57606]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Sun, MT,Zhang, ZL,Chen, L,et al. Tip-Enhanced Resonance Couplings Revealed by High Vacuum Tip-Enhanced Raman Spectroscopy[J]. ADVANCED OPTICAL MATERIALS,2013,1(6):449.
APA	Sun, MT,Zhang, ZL,Chen, L,&Xu, HX.(2013).Tip-Enhanced Resonance Couplings Revealed by High Vacuum Tip-Enhanced Raman Spectroscopy.ADVANCED OPTICAL MATERIALS,1(6),449.
MLA	Sun, MT,et al."Tip-Enhanced Resonance Couplings Revealed by High Vacuum Tip-Enhanced Raman Spectroscopy".ADVANCED OPTICAL MATERIALS 1.6(2013):449.