29 December 1999 Interferometric measurement of thermo-optic coefficients of transparent materials
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Proceedings Volume 4016, Photonics, Devices, and Systems; (1999) https://doi.org/10.1117/12.373648
Event: Photonics Prague '99, 1999, Prague, Czech Republic
Abstract
We describe an interferometric technique based on temperature dependent optical path length changes in thin slab of transparent materials, suitable for measuring the thermo-optic coefficients of transparent materials. This technique allows an accurate determination of the fringe shift corresponding to a change in the sample temperature, by means of a two fringe pattern Fourier-transform based processing algorithm for phase retrieval. The principle of measurement of the method and its applications to the measurements of the thermo-optic coefficients of some commercial glasses are presented and discussed.
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Sergio De Nicola, Sergio De Nicola, Andrea Finizio, Andrea Finizio, Pietro Ferraro, Pietro Ferraro, Giovanni Pierattini, Giovanni Pierattini, } "Interferometric measurement of thermo-optic coefficients of transparent materials", Proc. SPIE 4016, Photonics, Devices, and Systems, (29 December 1999); doi: 10.1117/12.373648; https://doi.org/10.1117/12.373648
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