THz Spectroscopy of Liquid Crystals from the CB Family

被引:45
作者
Wilk, Rafal [1 ,2 ]
Vieweg, Nico [2 ]
Kopschinski, Olaf [2 ]
Hasek, Tomasz [2 ]
Koch, Martin [2 ,3 ]
机构
[1] Menlo Syst GmbH, D-82152 Martinsried, Germany
[2] Inst High Frequency Technol, D-38106 Braunschweig, Germany
[3] Univ Marburg, Dept Phys, D-35032 Marburg, Germany
关键词
Terahertz; Spectroscopy; Liquid crystals; TIME-DOMAIN SPECTROSCOPY; DIELECTRIC-RELAXATION;
D O I
10.1007/s10762-009-9537-z
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
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.
引用
收藏
页码:1139 / 1147
页数:9
相关论文
共 17 条
  • [1] Liquid-crystal-based terahertz tunable Lyot filter
    Chen, CY
    Pan, CL
    Hsieh, CF
    Lin, YF
    Pan, RP
    [J]. APPLIED PHYSICS LETTERS, 2006, 88 (10)
  • [2] Magnetically tunable room-temperature 2π liquid crystal terahertz phase shifter
    Chen, CY
    Hsieh, CF
    Lin, YF
    Pan, RP
    Pan, CL
    [J]. OPTICS EXPRESS, 2004, 12 (12): : 2625 - 2630
  • [3] Collings PeterJ., 2004, INTRO LIQUID CRYSTAL
  • [4] De Jeu W. H., 1978, LIQ CRYST, pp. 109
  • [5] EVANS GJ, 1977, J C S F2, P73
  • [6] EVANS M, 1973, J C S F2, P69
  • [7] GHATTAN Z, 2008, OPT COMMUN, V281, P18
  • [8] FAR-INFRARED TIME-DOMAIN SPECTROSCOPY WITH TERAHERTZ BEAMS OF DIELECTRICS AND SEMICONDUCTORS
    GRISCHKOWSKY, D
    KEIDING, S
    VANEXTER, M
    FATTINGER, C
    [J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1990, 7 (10) : 2006 - 2015
  • [9] Audio signal transmission over THz communication channel using semiconductor modulator
    Kleine-Ostmann, T
    Pierz, K
    Hein, G
    Dawson, P
    Koch, M
    [J]. ELECTRONICS LETTERS, 2004, 40 (02) : 124 - 126
  • [10] DIELECTRIC RELAXATION IN NEMATIC LIQUID CRYSTALS
    MEIER, G
    SAUPE, A
    [J]. MOLECULAR CRYSTALS, 1966, 1 (04): : 515 - +