THz properties of nematic liquid crystals

Nico Vieweg, Mohammad Khaled Shakfa, Benedikt Scherger, Martin Mikulics, Martin Koch

Research output: Contribution to journalArticlepeer-review

68 Scopus citations

Abstract

We systematically study the terahertz (THz) properties of a set of nematic liquid crystals. We use THz time domain spectroscopy to obtain data between 0.2 THz up to 2.5 THz. Such a broadband set of terahertz data has not yet been reported. From the measured data, we extract macroscopic data, such as the birefringence, the refractive indices and the absorption coefficients for ordinary and extraordinary polarization. The impact of different side chains and core structures on the terahertz anisotropy are discussed. This paper will serve as a data base and can be very useful for the design of new terahertz liquid crystal material.

Original languageBritish English
Pages (from-to)1312-1320
Number of pages9
JournalJournal of Infrared, Millimeter, and Terahertz Waves
Volume31
Issue number11
DOIs
StatePublished - Nov 2010

Keywords

  • Birefringence
  • Liquid crystals
  • Spectroscopy
  • Terahertz

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