✦ LIBER ✦
Simultaneous determination of refractive index and absorbance spectra of chemical samples using surface plasmon resonance
✍ Scribed by S.R. Karlsen; K.S. Johnston; R.C. Jorgenson; S.S. Yee
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 385 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0925-4005
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✦ Synopsis
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-between 580 and 700 nm for refractive indices from 1.3 to 1.5.