Journal
OPTICAL ENGINEERING
Volume 56, Issue 11, Pages -Publisher
SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
DOI: 10.1117/1.OE.56.11.117109
Keywords
liquid crystal; refractive indices
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Funding
- National Natural Science Foundation of China (NSFC) [61505175, 61475134]
- Natural Science Foundation of Hebei Province, China [F2017203110, F2017203193]
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The dependence of refractive indices of liquid crystal (LC) on temperature is represented by the Haller approximation model, and its dependence on the wavelength is expressed by the extended Cauchy model. We derived the refractive indices expressions of nematic LC E7 depending on temperature and wavelength simultaneously by combining these two models. Based on the obtained expressions, one can acquire the refractive indices of E7 at arbitrary temperature and wavelengths. The birefringence, variation rate of refractive indices, macroscopic order parameter Q, and orientational order parameter < P-2 > of E7 were then discussed based on the expressions. (C) 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
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