Mid-infrared refractive indices of the nematic mixture E7

Year: 2003

Authors: Brugioni S., Faetti S., Meucci R.

Autors Affiliation: Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Fiirenze, Italy;
INFM and Dipartimento di Fisica, Università di Pisa, Via Buonarroti 2, 56127 Pisa, Italy

Abstract: E7 is a room temperature nematic liquid crystal mixture with a high positive dielectric anisotropy and a high chemical stability. Because of its relatively high nematic-to-isotropic transition temperature, it is suitable for mid-infrared laser applications, where the absorption of laser light is not negligible and gives rise to a certain heating of the medium. In this paper we give a measurement of the refractive indices of the liquid crystal E7 at a wavelength of 10.6mum as a function of temperature. An empirical formula to represent the experimental data is also provided.

Journal/Review: LIQUID CRYSTALS

Volume: 30 (8)      Pages from: 927  to: 930

KeyWords: Bbenzene derivative, anisotropy; Article; Heating; Infrared radiation; Liquid crystal; Molecular stability; Polarimetry; Room temperature; Temperature dependence
DOI: 10.1080/0267829031000136057

Citations: 20
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