Study of the Effect of Nematic Order Degradation in Liquid Crystal-Based Surface Plasmon Resonance Sensors

被引:8
|
作者
Abuabed, Alaeddin S. A. [1 ]
机构
[1] Univ Cent Oklahoma, Dept Engn & Phys, 100 N Univ Dr, Edmond, OK 73034 USA
关键词
liquid crystal; surface plasmon; optical sensors;
D O I
10.3390/photonics4020024
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
This paper presents a new analysis of optical sensors based on surface plasmon resonance (SPR) phenomenon and nematic liquid crystal (LC) sensitive layer in the partially ordered state. In particular, the paper studies the influence of degradation in the LC ordering state on the behavior of the plasmon resonance parameters. The degradation in the LC ordering is represented by the order parameter. The explicit treatment of the order parameter is critical when trying to differentiate between a change in alignment and a degradation of alignment in LC in response to the presence of an external stimulus in LC based sensors. When a reduction in ordering occurs, ignoring the order parameter can produce misleading results. This sensor has potential applications in chemical and biological systems. The paper presents a tracking method for the state of alignment and degree of ordering of the partially ordered LC film. This can be achieved via the SPR propagation constant and the critical angle at the interface between a metal and an LC film.
引用
收藏
页数:10
相关论文
共 50 条
  • [1] Liquid Crystal-Based Surface Plasmon Resonance Biosensor
    Vahedi, Ali
    Kouhi, Mohammad
    PLASMONICS, 2020, 15 (01) : 61 - 71
  • [2] Correction to: Liquid Crystal-Based Surface Plasmon Resonance Biosensor
    Ali Vahedi
    Mohammad Kouhi
    Plasmonics, 2020, 15 : 73 - 73
  • [3] Nematic liquid crystals as sensitive layers for surface plasmon resonance sensors
    Kieser, B
    Pauluth, D
    Gauglitz, G
    ANALYTICA CHIMICA ACTA, 2001, 434 (02) : 231 - 237
  • [4] Liquid crystal-based dielectric loaded surface plasmon polariton optical switches
    Tasolamprou, A. C.
    Zografopoulos, D. C.
    Kriezis, E. E.
    JOURNAL OF APPLIED PHYSICS, 2011, 110 (09)
  • [5] Surface Plasmon Resonance Based Temperature Sensors in Liquid Environment
    Ibrahim, Joyce
    Al Masri, Mostafa
    Verrier, Isabelle
    Kampfe, Thomas
    Veillas, Colette
    Celle, Frederic
    Cioulachtjian, Serge
    Lefevre, Frederic
    Jourlin, Yves
    SENSORS, 2019, 19 (15)
  • [6] Effect of plasmonic materials on photonic crystal fiber based surface plasmon resonance sensors
    Yasli, Ahmet
    Ademgil, Huseyin
    MODERN PHYSICS LETTERS B, 2019, 33 (13):
  • [7] Anisotropic shift of surface plasmon resonance of gold nanoparticles doped in nematic liquid crystal
    Choudhary, Amit
    Li, Guoqiang
    OPTICS EXPRESS, 2014, 22 (20): : 24348 - 24357
  • [8] Differential ellipsometric surface plasmon resonance sensors with liquid crystal polarization modulators
    Hooper, IR
    Sambles, JR
    APPLIED PHYSICS LETTERS, 2004, 85 (15) : 3017 - 3019
  • [9] Polyelectrolytes functionalized nematic liquid crystal-based biosensors: An overview
    Munir, Sundas
    Kang, Inn-Kyu
    Park, Soo-Young
    TRAC-TRENDS IN ANALYTICAL CHEMISTRY, 2016, 83 : 80 - 94
  • [10] Photonic crystal fiber based surface plasmon resonance chemical sensors
    Zhao, Yong
    Deng, Ze-qun
    Li, Jin
    SENSORS AND ACTUATORS B-CHEMICAL, 2014, 202 : 557 - 567