L
Lokesh K. Gangwar
Researcher at Council of Scientific and Industrial Research
Publications - 13
Citations - 54
Lokesh K. Gangwar is an academic researcher from Council of Scientific and Industrial Research. The author has contributed to research in topics: Liquid crystal & Dielectric. The author has an hindex of 4, co-authored 8 publications receiving 46 citations. Previous affiliations of Lokesh K. Gangwar include Academy of Scientific and Innovative Research.
Papers
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Journal ArticleDOI
Polarisation-dependent dielectric processes in ferroelectric liquid crystals
Ambika Bawa,Ambika Bawa,Lokesh K. Gangwar,Lokesh K. Gangwar,Aastha Dhingra,Amit Choudhary,Rajesh,Surinder P. Singh,Wolfgang Haase,Ashok M. Biradar +9 more
TL;DR: The behaviour of dielectric relaxation process has been investigated in four ferroelectric liquid crystal (FLC) materials having different spontaneous polarisation (Ps) values in this article.
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Collective dielectric processes at the transition temperature of the Sm-C^{*} and Sm-A^{*} phase in a ferroelectric liquid crystal.
TL;DR: The p-UHM process which is dependent on an applied oscillating field in the Sm-C^{*} phase, and the probing ac and dc bias field dependences of all these collective dielectric processes have been reported in the smectic C-C and Sm-A-A phases of FLC materials.
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Probing the impact of carbon quantum dots on partially unwound helical mode in ferroelectric liquid crystals
Lokesh K. Gangwar,Lokesh K. Gangwar,Aditya Kumar,Gautam Singh,Amit Choudhary,Rajesh,Surinder P. Singh,Ashok M. Biradar +7 more
TL;DR: In this paper, the authors reported the modulation in dielectric properties of a ferroelectric liquid crystal (FLC) by using carbon quantum dots (CQDs) of size ∼4-5nm.
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Ferroelectric ordering at interface of paraelectric phase of liquid crystal and solid substrate in confined geometry
TL;DR: In this paper, the interfacial molecular dynamics at the interface of solid substrate and paraelectric phase liquid crystal is investigated by dielectric spectroscopy in surface stabilized geometry of strongly and weakly rubbed cells.
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Correlation between alignment geometries and memory effect in a surface-stabilized ferroelectric liquid crystal.
Suraj Kumar,Suraj Kumar,Lokesh K. Gangwar,Lokesh K. Gangwar,Ambika Bawa,Ambika Bawa,Amit Choudhary,Rajesh,Surinder P. Singh,Ashok M. Biradar +9 more
TL;DR: Investigation of memory effect in weakly aligned surface stabilized ferroelectric liquid crystal material in three configurations of alignment finds that two types of molecular dynamics exist in antiparallel rubbed cell in which memory effect is observed for longer duration than in other samples.