| Zugriffsnummer | 30965 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Terahertz absorption of nematic liquid crystals. |
| Autor(in); Institution |
Vieweg, Nico; Universität Marburg, Faculty of Physics and Materials Sciences Center, Marburg, GERMANY
Celik, Mehmet Ali; Universität Marburg, Faculty of Physics and Materials Sciences Center, Marburg, GERMANY
Zakel, Sabine; 3.1, Metrologie in der Chemie, PTB-Braunschweig
Gupta, Vineet; Universität Marburg, Faculty of Physics and Materials Sciences Center, Marburg, GERMANY
Frenking, Gernot; Universität Marburg, Faculty of Physics and Materials Sciences Center, Marburg, GERMANY
Koch, Martin; Universität Marburg, Faculty of Physics and Materials Sciences Center, Marburg, GERMANY
|
| Quelle/Jahr | International Journal of Infrared and Millimeter Waves: 35 (2014), 5, 478 - 485 |
| ISSN | 1866-6892 |
| DOI | |
| Verlag | New York, NY: Springer |
| Freie Schlagworte | terahertz spectroscopy ; fourier transform infrared spectroscopy ; liquid crystals ; far infrared |
| Zusammenfassung | We present the first systematic study of cyanobiphenyls (CBs) and the phenylcyclohexanes in the range between 50 cm-1 (1.5 THz) and 500 cm-1 (15 THz). The impact of the alkyl chain length and of variations in the core structure on the spectrum is investigated using liquid drystals from the cyanobiphenyl and phenylcyclohexane families. Our measurements are supported by calculations based on density functional theory. This enables us to shine light on the vibrational dynamics of liquid crystal molecules in the terahertz frequency range. |
