Search Results - "Kumar Gupta, Swadesh"

Tuning phase retardation behaviour of nematic liquid crystal using quantum dot by Gupta, Swadesh Kumar, Singh, Dharmendra Pratap, Manohar, Rajiv, Kumar, Sandeep

“…We here report on the phase retardation behavior of nematic liquid crystal (NLC) doped with CdSe quantum dot (QD). A study of birefringence and relative…”
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The phenomenon of induced photoluminescence in ferroelectric mesophase by Singh, Dharmendra Pratap, Gupta, Swadesh Kumar, Srivastava, Atul, Manohar, Rajiv

“…Most of ferroelectric liquid crystal (FLC) or ferroelectric mesophase show no photoluminescence (PL). But when, Cu doped ZnO (Cu-ZnO) nanoparticles (NPs) are…”
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Modification in dielectric properties of SWCNT doped ferroelectric liquid crystals by Gupta, Swadesh Kumar, Kumar, Anish, Srivastava, Abhishek Kumar, Manohar, Rajiv

“…Effect of single walled carbon nanotubes (SWCNT) in ferroelectric liquid crystal (FLC) geometry has been studied for low and high concentrations of dopant. The…”
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SWCNT doped ferroelectric liquid crystal: The electro-optical properties with enhanced dipolar contribution by Gupta, Swadesh Kumar, Singh, Dharmendra Pratap, Manohar, Rajiv

“…Effect of single wall carbon nanotubes (SWCNTs) on electro-optical performance of a ferroelectric liquid crystal (FLC) has been studied. Voltage dependent…”
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Ferroelectric liquid crystal matrix dispersed with Cu doped ZnO nanoparticles by Singh, Dharmendra Pratap, Gupta, Swadesh Kumar, Pandey, Kamal Kumar, Yadav, Satya Prakash, Varia, M.C., Manohar, Rajiv

“…10% Cu doped ZnO nanoparticles (NPs) prepared by hydrothermal and solvothermal method have been dispersed to the pure FLC 17/100 in 1% concentration of guest…”
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材料模型对高温Ti-6Al-4V合金理论成形极限图预测的影响（英文） by Nitin KOTKUNDE Sashank SRINIVASAN Geetha KRISHNA Amit Kumar GUPTA Swadesh Kumar SINGH

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Metallurgical Studies of Austenitic Stainless Steel 304 under Warm Deep Drawing by Lade, Jayahari, Banoth, Balu Naik, Gupta, Amit Kumar, Singh, Swadesh Kumar

“…Austenitic stainless steel 304 was deep drawn with different blank diameters under warm conditions using 20 t hydraulic press. A number of deep drawing…”
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Tailoring of cholesteric plane spacing, dielectric relaxation and optical properties of high temperature chiral nematic phase by UV irradiation by Singh, Dharmendra Pratap, Vimal, Tripti, Kumar Gupta, Swadesh, Tripathi, Prachi, Varia, M. C., Kumar, Sandeep, Manohar, Shashwati, Manohar, Rajiv

“…The effect of Ultra Violet (UV) irradiation on the high temperature chiral nematic (N * ) mesophase has been investigated. The controlled UV exposure produced…”
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ZnO1−xSx Nanosphere in Ferroelectric Liquid Crystal Matrix : The Effect of Aggregation and Defects on the Dielectric and Electro-Optical Properties by Singh, Dharmendra Pratap, Manohar, Rajiv, Gupta, Swadesh Kumar

“…High concentration (5 wt %) of ZnO1−xSx nanosphere (NS) has been dispersed in the ferroelectric liquid crystal (FLC) to analyze the effect of high dopant…”
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Ferroelectric liquid crystals: futuristic mesogens for photonic applications by Gupta, Swadesh Kumar, Budaszewski, Daniel, Singh, Dharmendra Pratap

“…Since their discovery in 1888, liquid crystals (LCs) have attracted an unceasing research interest due to their exceptional electro-optical properties that are…”
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Nematic Liquid Crystals Dispersed with Thermoelectric Gallium Oxide (Ga2O3) Microrods: A Perspective for Improving the Response Time of Electro-Optical Devices by Singh, Bhupendra Pratap, Sikarwar, Samiksha, Pandey, Kamal Kumar, Duraisamy, Sidharth, Gupta, Swadesh Kumar, Manohar, Rajiv

“…Electro-optic properties of nematic liquid crystals (LCs) based on thermoelectric gallium oxide (Ga2O3) microrod doping have been reported for the first time…”
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Core/shell quantum dots in ferroelectric liquid crystals matrix: effect of spontaneous polarisation coupling with dopant by Pandey, Shivani, Vimal, Tripti, Singh, Dharmendra Pratap, Gupta, Swadesh Kumar, Pathak, Govind, Katiyar, Rohit, Manohar, Rajiv

“…In order to fabricate efficient and superior performance liquid crystal (LC) devices, the physical parameters of the LC mesogens can be duly altered by…”
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Highly Efficient Ultra‐Broadband Terahertz Modulation Using Bidirectional Switching of Liquid Crystals by Chen, Xuequan, Li, Kaidi, Zhang, Rui, Gupta, Swadesh Kumar, Srivastava, Abhishek Kumar, Pickwell‐MacPherson, Emma

“…Accurately manipulating field strength and polarization state are essential in various terahertz applications. Such manipulations are based on the efficient…”
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Low voltage tunable liquid crystal Fibonacci grating by Gupta, Swadesh Kumar, Sun, Zhibo, Kwok, Hoi-Sing, Srivastava, Abhishek Kumar

“…In this article, we disclose low voltage tunable liquid crystal Fibonacci gratings (FbG). Photoalignment technique has been used to create two domains of…”
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Enhancement of birefringence of liquid crystals with dispersion of poly (n-butyl methacrylate) (PBMA) by Pande, Mukti, Tripathi, Pankaj Kumar, Gupta, Swadesh Kumar, Manohar, Rajiv, Singh, Shri

“…In this work, we have reported the temperature dependence of birefringence for pure liquid crystals (LCs) and liquid crystal-polymer composite (LC-PC) systems…”
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Enhanced negative dielectric anisotropy and high electrical conductivity of the SWCNT doped nematic liquid crystalline material by Vimal, Tripti, Pandey, Shivani, Gupta, Swadesh Kumar, Singh, Dharmendra Pratap, Manohar, Rajiv

“…We report a significant improvement in the dielectric anisotropy of single wall carbon nanotube (SWCNT) doped p-ethoxybenzylidene p-butylaniline (EBBA) nematic…”
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Cd1-xZnxS/ZnS core/shell quantum dot ferroelectric liquid crystal composite system: analysis of faster optical response and lower operating voltage by Pandey, Shivani, Vimal, Tripti, Singh, Dharmendra Pratap, Gupta, Swadesh Kumar, Tripathi, Prachi, Phadnis, Chinmay, Mahamuni, Shailaja, Srivastava, Atul, Manohar, Rajiv

“…Cd 1−x Zn x S/ZnS core/shell-structured quantum dot (QD)-doped ferroelectric liquid crystal (FLC) Felix 17/000 has been investigated in the present study. In…”
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Analysis of physical parameters and collective dielectric relaxations in core/shell quantum dot ferroelectric liquid crystal composite by Pandey, Shivani, Vimal, Tripti, Singh, Dharmendra Pratap, Gupta, Swadesh Kumar, Mahamuni, Shailaja, Srivastava, Atul, Manohar, Rajiv

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P‐9.11: Photo Aligned Quantum Rod Films by Printing with Extended Color Gamut by Gupta, Swadesh Kumar, Prodanov, Maksym, Vashchenko, Valerii, Diakov, Maksym, Srivastava, Abhishek Kumar

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Effects of polymer doping on dielectric and electro-optical parameters of nematic liquid crystal by Pandey, Shivani, Gupta, Swadesh Kumar, Singh, Dharmendra Pratap, Vimal, Tripti, Tripathi, Pankaj Kumar, Srivastava, Atul, Manohar, Rajiv

“…Poly(isobutyl methacrylate) (PiBMA) polymer doped in pure p‐Ethoxybenzylidene p‐Heptylaniline (EBHA) mesomaterial has been investigated in the present study…”
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