COMPARATIVE DIELECTRIC AND OPTICAL STUDY OF A PURE AND POLYMER DOPED LIQUID CRYSTAL SHOWING SMECTIC A PHASE
Journal Title: Journal of Science And Arts - Year 2012, Vol 20, Issue 3
Abstract
The dielectric measurements have been done for the determination of real and imaginary part of permittivity of a monotropic Smectic sample alongwith its polymer doped sample. The samples have been investigated in the frequency range from 1 kHz to 1 MHz and temperature range 315 K to 340 K. The dielectric measurements in smectic phase indicate Debye-type dispersion with relaxation peak at 357.72 kHz and 354 .83 kHz for pure and polymer doped samples respectively at 333 K. Measurements have also been made for refractive indices, birefringence, optical transmittance in the above mentioned temperature range and order parameter have been calculated using birefringence data. The temperature dependence of these parameters has been discussed in detail.
Authors and Affiliations
SHASHWATI MANOHAR, SACHCHIDANAND SHUKLA, VISHAL SINGH CHANDEL, JAGDEESH PRASAD SHUKLA, RAJIV MANOHAR
Keywords
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- EP ID EP151011
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