High temperature-gradient refractive index liquid crystals
- 1 January 2004
- journal article
- Published by Optica Publishing Group in Optics Express
- Vol. 12 (9) , 2002-2010
- https://doi.org/10.1364/opex.12.002002
Abstract
We have analyzed the physical origins of the temperature gradient of the ordinary refractive index (dno / dT ) of liquid crystals. To achieve a large dno / dT , high birefringence and low clearing temperature play crucial roles. Based on these simple guidelines, we formulated two exemplary liquid crystal mixtures, designated as UCF-1 and UCF-2, and compared their physical properties with a commonly used commercial liquid crystal compound 5CB. The dno / dT of UCF-1 is ~4X higher than that of 5CB at room temperature.Keywords
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