Journal of Infrared, Millimeter, and Terahertz Waves

, Volume 30, Issue 11, pp 1139-1147

First online:

THz Spectroscopy of Liquid Crystals from the CB Family

  • Rafał WilkAffiliated withInstitute for High-Frequency TechnologyMenlo Systems GmbH Email author 
  • , Nico ViewegAffiliated withInstitute for High-Frequency Technology
  • , Olaf KopschinskiAffiliated withInstitute for High-Frequency Technology
  • , Tomasz HasekAffiliated withInstitute for High-Frequency Technology
  • , Martin KochAffiliated withInstitute for High-Frequency TechnologyPhysics Department, Philipps University Marburg

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Liquid crystals represent a very interesting material system but their properties in the THz range have not been extensively investigated yet. In this paper we investigate the THz properties of four liquid crystals from the CB family (5CB, 6CB, 7CB and 8CB). In addition to absolute refractive indices and absorption coefficients we present accurate birefringence measurements for different electric fields and temperatures.


Terahertz Spectroscopy Liquid crystals