Abstract

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.

Assessment of wavelength dependent complex refractive index of strongly light absorbing liquids

Jukka Räty, Pertti Pääkkönen, and Kai-Erik Peiponen
Opt. Express 20(3) 2835-2843 (2012)

Measurement of refractive index of isotropic particles by incorporating a multifunction spectrophotometer and immersion liquid method

Ilpo Niskanen, Jukka Räty, and Kai-Erik Peiponen
Appl. Opt. 46(22) 5404-5407 (2007)

Refractive Indices of Infrared-Transmitting Substrate Materials Calculated Using Standard Spectrophotometer Transmittance Curves

Hugh R. Carlon
Appl. Opt. 8(6) 1179-1182 (1969)

Optical sensing of concentration and refractive index of pigments in a suspension

Ilpo Niskanen, Jukka Räty, and Kai-Erik Peiponen
Appl. Opt. 49(17) 3428-3433 (2010)

Pressure and Stress Dependence of the Refractive Index of Transparent Crystals

Bernard Bendow, Peter D. Gianino, Yet-Ful Tsay, and Shashanka S. Mitra
Appl. Opt. 13(10) 2382-2396 (1974)