Simultaneous determination of refractive index and absorbance spectra of chemical samples using surface plasmon resonance

Simultaneous determination of refractive index and absorbance spectra of chemical samples using surface plasmon resonance

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....

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Bibliographic Details
Published in:Sensors and actuators. B, Chemical Vol. 25; no. 1; pp. 747 - 749
Main Authors: Karlsen, S.R., Johnston, K.S., Jorgenson, R.C., Yee, S.S.
Format: Journal Article
Language:English
Published: Elsevier B.V 1995
Subjects:
Optical sensors
Surface plasmon resonance
Optical sensors
Surface plasmon resonance
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Summary: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 spectrium of solid or liquid samples can be measured. Preliminary experimental results demonstrate a refractive index sensitivity of 6 × 10 −4 between 580 and 700 nm for refractive indices from 1.3 to 1.5.
ISSN:0925-4005
1873-3077
DOI:10.1016/0925-4005(95)85165-8