107 citations · 382 across the 15 of their papers we have counts for
16 papers
Realignment of ferroelectric nematic by photoinduced electric field
Sathyanarayana Paladugu, Oleksandr Kurochkin, Ruslan Kravchuk +5
Liquid crystal displays (LCDs) employ thin pixels of a paraelectric nematic, confined between two glass plates with transparent indium tin oxide (ITO) electrodes. A voltage applied…
Rheological properties and shear-induced structures of ferroelectric nematic liquid crystals
Ashish Chandra Das, Sathyanarayana Paladugu, Oleg D. Lavrentovich
Recently discovered ferroelectric nematic (NF) liquid crystals are fluids with a polar orientational order. The electric polarization vector can be aligned by an electric field and…
Helix alignment, chevrons, and edge dislocations in twist-bend ferroelectric nematics
Bijaya Basnet, Priyanka Kumari, Sathyanarayana Paladugu +6
We explore surface alignment and edge dislocations in the recently discovered twist-bend ferroelectric nematic, NTBF, in which the vector of spontaneous polarization follows an obl…
Sub-microsecond electric switching of large birefringence in the isotropic phase of ferroelectric nematics
Kamal Thapa, Sathyanarayana Paladugu, Oleg D. Lavrentovich
Conventional nonpolar nematic liquid crystals, widely known for their successful display applications, are not well-suited for fast electro-optical switching because of the slow (m…
Periodic splay Fréedericksz transitions in a ferroelectric nematic
Bijaya Basnet, Sathyanarayana Paladugu, Oleksandr Kurochkin +5
Electric field-induced splay of molecular orientation, called the Fréedericksz transition, is a fundamental electro-optic phenomenon in nonpolar nematic liquid crystals. In a ferro…
Microsecond electro-optic switching in the nematic phase of a ferroelectric nematic liquid crystal
Kamal Thapa, Sathyanarayana Paladugu, Oleg D. Lavrentovich
Nematic liquid crystals exhibit nanosecond electro-optic response to an applied electric field which modifies the degree of orientational order without realigning the molecular ori…
Trapping of isotropic droplets by disclinations in nematic liquid crystals controlled by surface anchoring and elastic constant disparity
Nilanthi P. Haputhanthrige, Sathyanarayana Paladugu, Maxim O. Lavrentovich +1
Linear defects such as dislocations and disclinations in ordered materials attract foreign particles since they replace strong elastic distortions at the defect cores. In this work…
Interactions of charged microrods in chiral nematic liquid crystals
Muhammed Rasi M, Ravi Kumar Pujala, Sathyanarayana Paladugu +1
We study the pair interaction of charged silica microrods in chiral nematic liquid crystals and show that the microrods with homeotropic surface anchoring form a bound state due to…
Liquid crystal phases with unusual structures and physical properties formed by acute-angle bent-core molecules
Bing-Xiang Li, Yuriy A. Nastishin, Hao Wang +7
Liquid crystals formed by acute-angle bent-core (ABC) molecules with a 1,7 naphthalene central core show an intriguing phase behavior with the nematic phase accompanied by poorly u…
Microrheology to Probe Smectic Clusters in Bent-core Nematic Liquid Crystals
Sathyanarayana Paladugu, Supreet Kaur, Golam Mohiuddin +3
Many bent-core nematic liquid crystals exhibit unusual physical properties due to the presence of smectic clusters, known as "cybotactic" clusters in the nematic phase. Effect of t…
Three-dimensional solitary waves with electrically tunable direction of propagation in nematics
Bing-Xiang Li, Rui-Lin Xiao, Sathyanarayana Paladugu +2
Production of stable multidimensional solitary waves is a grand challenge in modern science. Steering their propagation is an even harder problem. In this work we demonstrate three…
Dye-doped dual-frequency nematic cells as fast-switching polarization-independent shutters
Bing-Xiang Li, Rui-Lin Xiao, Sathyanarayana Paladugu +2
We present polarization-independent optical shutters with a sub-millisecond switching time. The approach utilizes dual-frequency nematics doped with a dichroic dye. Two nematic cel…
Electrically driven dynamic three-dimensional solitons in nematic liquid crystals
Bing-Xiang Li, Volodymyr Borshch, Rui-Lin Xiao +4
Electric field induced collective reorientation of nematic molecules placed between two flat parallel electrodes is of importance for both fundamental science and practical applica…
Elastic and viscous properties of nematic dimer CB7CB
Greta Babakhanova, Zeinab Parsouzi, Sathyanarayana Paladugu +5
We present a comprehensive set of measurements of optical, dielectric, diamagnetic, elastic and viscous properties in the nematic (N) phase formed by a liquid crystalline dimer. Th…
Nonadditivity of Critical Casimir Forces
Sathyanarayana Paladugu, Agnese Callegari, Yazgan Tuna +4
In soft and condensed matter physics, effective interactions often emerge as a result of the spatial confinement of a fluctuating field. For instance, microscopic particles in a bi…
Polar POLICRYPS Diffractive Structures Generate Cylindrical Vector Beams
Domenico Alj, Sathyanarayana Paladugu, Giovanni Volpe +2
Local shaping of the polarization state of a light beam is appealing for a number of applications. This can be achieved by employing devices containing birefringent materials. In t…