This title appears in the Scientific Report : 2013 

Highly birefringent, low-loss liquid crystals for terahertz applications
Reuter, M. (Corresponding author)
Vieweg, N. / Fischer, B. M. / Mikulics, Martin / Koch, M. / Garbat, K. / Dąbrowski, R.
Halbleiter-Nanoelektronik; PGI-9
APL materials, 1 S. 012107
Melville, NY AIP Publ. 2013
10.1063/1.4808244
Journal Article
Sensorics and bioinspired systems
OpenAccess
Please use the identifier: http://hdl.handle.net/2128/7836 in citations.
Please use the identifier: http://dx.doi.org/10.1063/1.4808244 in citations.
Please use the identifier: http://hdl.handle.net/2128/5816 in citations.
With growing interest in switchable devices for the THz frequency range, there is a strong demand for liquid crystals (LC) exhibiting both a high birefringence and a low absorption. We present the refractive index and absorption coefficient of the liquid crystal mixtures 1852 and 1825 in the frequency range between 0.2 and 2.5 THz. Both mixtures are designed specifically for high birefringence Δn of 0.32 and 0.38, respectively, in the THz region. In addition, they show low absorption coefficients for both ordinary and extraordinary polarization. This low absorbance in combination with the high birefringence makes these LCs particularly well suited for applications in switchable devices for THz optics.