Accurate measurement of absorption spectra and refractive index of glass by Spectrophotometry

Abstract

The experimental methods for determining optical constants like refractive index and absorption coefficient often require specialized equipment. An Instrument that is standard equipment in most laboratories where optical materials are being characterized is the spectrophotometer. This type of Instrument is widely used for the measurement of reflectance and transmittance spectra at wavelengths ranging from 200 nm up to 50,000 nm. The paper aims to present a state-of-the-art overview of methods for determination of the optical constants of glass by Spectrophotometry. Examples are given for various types of glasses and applications under room temperature as well as elevated temperatures.