Measuring the refractive index of vitreous materials at cryogenic temperatures with a spectrometer

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...

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Bibliographic Details
Published inMeasurement science & technology Vol. 19; no. 8; pp. 085304 - 085304 (9)
Main Authors Vannoni, Maurizio, Mochi, Iacopo, Olivieri, Monica, Mondello, Giuseppe, Molesini, Giuseppe
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.08.2008
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Summary: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 (2sigma).
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0957-0233
1361-6501
DOI:10.1088/0957-0233/19/8/085304