Measuring the refractive index of vitreous materials at cryogenic temperatures with a spectrometer
Authors: Vannoni M., Mochi I., Olivieri M., Mondello G., Molesini G.
Autors Affiliation: CNR, Istituto Nazionale di Ottica Applicata, Largo E Fermi 6, Firenze 50125, Italy; Istituto Nazionale di Astrofisica, Osservatorio Astrofisico di Arcetri, Largo E Fermi 5, Firenze 50125,Italy; Galileo Avionica, Via A Einstein 35, Campi Bisenzio 50013, Italy
Abstract: The use of a spectrometer to measure the refractive index of a prism glass sample in the visible and near-infrared regions at cryogenic temperature is reported. The details of the measuring cell and the experimental apparatus are provided, and a specific data reduction procedure based on ray tracing is introduced. Demonstrative results on a BK7 prism sample in a temperature range from 105 to 293 K and wavelength from 480 to 894 nm are presented. The measurement uncertainty is 3 x 10(-5) (2 sigma).
Journal/Review: MEASUREMENT SCIENCE & TECHNOLOGY
Volume: 19 (8) Pages from: 085304 to: 085304
KeyWords: Cryogenics; Infrared devices; Prisms; Ray tracing; Spectrometers; Thermoelectricity; Uncertainty analysis; Cryogenic measurement; Cryogenic temperatures; Experimental apparatus; Measurement uncertainty; Measuring cells; Temperature range; Visible and near infrared; Vitreous materials; Refractive indexDOI: 10.1088/0957-0233/19/8/085304Citations: 5data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2020-05-31References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here