SIMULTANEOUS DETERMINATION OF REFRACTIVE-INDEX AND ABSORBENCY SPECTRA OF CHEMICAL-SAMPLES USING SURFACE-PLASMON RESONANCE

被引：22
|
作者：
KARLSEN, SR
JOHNSTON, KS
JORGENSON, RC
YEE, SS
机构：
[1] Department of Electrical Engineering, University of Washington, Seattle
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 1995年 / 25卷 / 1-3期
基金：
美国国家科学基金会;
关键词：
OPTICAL SENSORS; SURFACE PLASMON RESONANCE;
D O I：
10.1016/0925-4005(95)85165-8
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A technique for using surface plasmon resonance to characterize dispersive refractive-index and absorption profiles is reported. This is accomplished by simultaneously exciting surface plasmon resonance at multiple angles and multiple wavelengths and then analyzing the resulting resonance profiles. By calibrating with liquids of known refractive index profiles, the refractive index spectrum of solid or liquid samples can be measured. Preliminary experimental results demonstrate a refractive index sensitivity of 6x10(-4) between 580 and 700 nm for refractive indices from 1.3 to 1.5.
引用
收藏
页码：747 / 749
页数：3
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