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Roughened Glass Slides and a Spectrophotometer for the Detection of the Wavelength-Dependent Refractive Index of Transparent Liquids
Volume 66, Number 7 (July 2012) Page 786-790
ILPO NISKANEN,* JUKKA RÄTY, RISTO MYLLYLÄ, VEIJO SUTINEN, KIYOFUMI MATSUDA, KAZUHIRO HOMMA, PERTTI SILFSTEN, and KAI-ERIK PEIPONEN
We describe a method to determine the wavelength-dependent refractive index of liquids by measurement of light transmittance with a spectrophotometer. The method is based on using roughened glass slides with different a priori known refractive indices and immersing the slides into the transparent liquid with unknown refractive index. Using the dispersion data on the glass material it is possible to find the index match between the liquid and the glass slide, and hence the refractive index of the liquid.
Index Headings: Liquid; Refractive index; Glass slides; Immersion liquid method.