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High birefringence (Δn>0.4) nematic liquid crystals are particularly attractive for infrared applications because they enable a thinner cell gap to be used for achieving a fast response time. In this experiment, we evaluate the mesomorphic and physical properties of several fluorinated NCS terphenyl compounds. These compounds have Δn∼0.35 in the visible spectral region and relatively low viscosity. In terms of applications, these compounds can be used as a dopant to enhance the figure‐of‐merit of commercial mixtures for display applications. We can also formulate high birefringence eutectic mixtures using solely NCS terphenyl compounds for near‐IR laser beam steering applications.
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Parish et al. (2008) studied this question.
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