A Criterion for Using Spectral Interferometry in Far Infrared Dispersion Measurements |
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Authors: | H. Delbarre C. Przygodzki M. Tassou D. Boucher |
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Affiliation: | (1) Laboratoire de Physico-Chimie de l'Atmosphère, Université du Littoral, M.R.E.I.D. 145, avenue Maurice Schumann, 59140 Dunkerque, France |
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Abstract: | High precision index measurements ( n/n 10-5) have been recently achieved on an AgGaS2 crystal using a spectral interferometry technique with a polarized white-light continuum. Up to now, these measurements are limited to the visible and near-infrared range, the most dispersive domain. We investigate the possibility to extend the technique to far infrared index measurements. We demonstrate a criterion depending only on group velocity dispersion and crystal thickness for planning future experiments. |
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Keywords: | spectral interferometry ultrashort pulses birefringent crystals indices group index group velocity dispersion AgGaS2 crystal |
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