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We present a study of the frequency and temperature dependent THz refractive index and absorption coefficient of the nematic liquid crystal mixture BL037. The refractive indices and absorption coefficients for ordinary and extraordinary polarization are extracted from the measured data using a precise analyzing algorithm. We find that BL037 has the highest THz birefringence found so far.
Terahertz (THz) spectroscopy holds a high potential as non-destructive, contact-free testing tool for the analysis of macromolecules, the monitoring of plastic processing and the inspection of plastic components. Even molecular properties, such as the glass transition temperature of highly-crystalline polymers, can be derived from THz measurements. Furthermore, we have identified a plethora of emerging...
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