Microwave cavity technique to study the dielectric response in 4′-n-Heptyl-4-biphenyl nematic liquid crystal at 20.900 GHz and 29.867 GHz
作者： Dharmendra Pratap Singh , Saumya Saxena , Sanjeev Johri , Harihar Paudyal , Manoj Johri
DOI: 10.1016/J.MEASUREMENT.2010.11.020
关键词: Dielectric loss 、 Microwave cavity 、 Dielectric 、 Optoelectronics 、 Spectrometer 、 Liquid crystal 、 Materials science 、 Optics 、 Microwave 、 Resonance 、 Photonic-crystal fiber
摘要: Abstract The experimental studies of the dielectric response in liquid crystal at different temperatures have been done by using a microwave cavity spectrometer. Microwave Cavity Spectrometer has used to measure and compare relative shift, width amplitude resonance profile for sample loaded operated TM 010 mode two frequencies 20.900 GHz 29.867 GHz. comparative study loss, relaxation time above also temperatures. method is its inherent accuracy requirement minute quantity sample. Importance nematic infiltrating photonic fibers modification their properties indicated.
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