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

Authors
KARLSEN SR JOHNSTON KS JORGENSON RC YEE SS
Citation
Sr. Karlsen et al., SIMULTANEOUS DETERMINATION OF REFRACTIVE-INDEX AND ABSORBENCY SPECTRAOF CHEMICAL-SAMPLES USING SURFACE-PLASMON RESONANCE, Sensors and actuators. B, Chemical, 25(1-3), 1995, pp. 747-749
Citations number
5
Categorie Soggetti
Engineering, Eletrical & Electronic","Instument & Instrumentation
Journal title
Sensors and actuators. B, Chemical → ACNP
ISSN journal
09254005
Volume
25
Issue
1-3
Year of publication
1995
Pages
747 - 749
Database
ISI
SICI code
0925-4005(1995)25:1-3<747:SDORAA>2.0.ZU;2-Z
Abstract
A technique for using surface plasmon resonance to characterize disper sive refractive-index and absorption profiles is reported. This is acc omplished by simultaneously exciting surface plasmon resonance at mult iple angles and multiple wavelengths and then analyzing the resulting resonance profiles. By calibrating with liquids of known refractive in dex profiles, the refractive index spectrum of solid or liquid samples can be measured. Preliminary experimental results demonstrate a refra ctive index sensitivity of 6x10(-4) between 580 and 700 nm for refract ive indices from 1.3 to 1.5.