High sensitivity stark spectroscopy obtained by surface plasmon resonance measurement

被引：58

作者：

Wang, S ^{[1
]}

Boussaad, S ^{[1
]}

Wang, S ^{[1
]}

Tao, NJ ^{[1
]}

机构：

[1] Florida Int Univ, Dept Phys, Miami, FL 33199 USA

来源：

ANALYTICAL CHEMISTRY | 2000年 / 72卷 / 17期

关键词：

D O I：

10.1021/ac000504f

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The effect (Stark effect) of an applied electric field on the electronic states of molecular adsorbates was studied by measuring surface plasmon resonance (SPR) as a function of the wavelength of the incident light that excites the SPR Using the Kramers-Kronig relation, Stark spectra comparable to those obtained with conventional methods were extracted from the electric field-induced SPR angular shift for several organic adsorbates. Because this method relies on detecting the SPR angular shift that can be measured precisely, high-sensitivity Stark spectroscopy can be achieved. Ln addition, the adsorbate coverage information can be determined from the SPR angular shift upon molecular adsorption.

引用

页码：4003 / 4008

页数：6

共 26 条

[1] High-resolution multiwavelength surface plasmon resonance spectroscopy for probing conformational and electronic changes in redox proteins [J].