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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars： Solution Landscapes of Nematic Liquid Crystal Systems
向列 液晶系统 解决方案
2023/5/6
Nematic liquid crystals (NLCs) are anisotropic material intermediate that combines the fluidity of liquids with the orientational order of solids. NLCs are best known for their applications in the thr...
Researchers from Cornell’s School of Applied and Engineering Physics and Samsung’s Advanced Institute of Technology have created a first-of-its-kind metalens – a metamaterial lens – that can be focuse...
Penn Researchers Demonstrate How to Control Liquid Crystal Patterns（图）
Penn Researchers Liquid Crystal Patterns
2017/11/23
When Lisa Tran set out to investigate patterns in liquid crystals, she didn’t know what to expect. When she first looked through the microscope, she saw dancing iridescent spheres with fingerprint-lik...
Penn Physicists Discover Why Drying Liquid Crystal Drops Leave Unusual “Coffee Rings”（图）
Penn Physicists Drying Liquid Crystal Drops Coffee Rings
2017/7/21
In previous papers, University of Pennsylvania physicists investigated the “coffee ring effect,” the ring-shaped stain of particles left after drops of coffee evaporate. In one paper, they learned how...
Liquid crystal turns water droplets into 'gemstones,' Penn materials research shows（图）
Liquid crystal gemstones
2014/3/17
Liquid crystals are remarkable materials that combine the optical properties of crystalline solids with the flow properties of liquids, characteristics that come together to enable the displays found ...
Modeling the Mechanisms of the Photomechanical Response of a Nematic Liquid Crystal Elastomer
Modeling Nematic Liquid Crystal Elastomer
2011/9/2
Recent studies of azo-dye doped liquid crystal elastomers show a strong photomechanical response.We report on models that predict experimental results that suggest photothermal heating is the dominant...
Depth Profile of Optically Recorded Patterns in Light-Sensitive Liquid Crystal Elastomers
Depth Profile Optically Recorded Patterns Light-Sensitive Liquid Crystal Elastomers
2011/8/11
Abstract: We investigated nonlinear absorption and photobleaching processes in a liquid crystal elastomer (LCE) doped with light-sensitive azobenzene moiety. A conventional one-dimensional holographic...
Ultrathin optical switch based on a liquid crystal/silver nanoparticles mixture as a tunable indefinite medium
Ultrathin optical switch liquid crystal silver nanoparticles tunable indefinite medium
2011/8/2
Abstract: We predict that a liquid crystal/silver nanoparticles mixture can be designed so that, in a frequency range, its effective ordinary and extraordinary permittivities have real parts of differ...
Fluctuation-induced Non-equilibrium Transition in a Liquid-Crystal Metastable System
fluctuation dissipation metastable configuration Langevin equation
2010/11/22
The research herein studies the Langevin dynamics allowing for an exchange of energy between
liquid crystals and the thermal environment. This dynamics leads to fluctuation and dissipation
behaviors...
Colloidal particles in liquid crystal films and at interfaces
colloids confinement interfaces elastic theory computer simulations
2010/11/18
This mini-review discusses the recent contribution of theoretical and computational physics as well as experimental efforts to the understanding of the behavior of colloidal particles in confined geom...
Electronic Liquid Crystal States Discovered in Parent of Iron-Based Superconductor
energy physics superconductivity Electronic Liquid Crystal States Iron-Based Superconductor
2010/1/11
An international team lead by scientists at the U.S. Department of Energy’s (DOE) Center for Emergent Superconductivity, an Energy Frontier Research Center headquartered at DOE’s Brookhaven National L...
Experimental Evidence of an Optical Shutter in Cholesteric Phase of a Double Hydrogen Bonded Liquid Crystal
Hydrogen bonded liquid crystal LTA+11BA Optical shutter Light modulator
2010/7/8
A novel series of double hydrogen bonded liquid crystals have been isolated. Hydrogen bond was formed between non mesogen chiral ingredient levo tartaric acid (LTA) and mesogenic undecyloxy benzoic ac...
Incoherent interaction of nematicons in bias-free liquid-crystal cells
Nonlinear optics liquid crystals nematicons
2010/4/8
We study experimentally the propagation dynamics and interaction of a pair of mutually incoherent nematicons: spatial optical solitons in nematic liquid crystals. In contrast to earlier studies, we co...
In the paper, a method to calculate the time evolution turbulence wavefronts based on the covariance method is theoretically presented in detail. According to it, the time-evolution wavefronts disturb...
Topological Defects in Liquid Crystal Films
director field free-energy density topological
current topological defects winding number
2007/8/15
2007Vol.47No.6pp.1125-1128DOI:
Topological Defects in Liquid Crystal Films
DUAN Yi-Shi,1 ZHAO Li,1 ZHANG Xin-Hui,1 and SI Tie-Yan2
1 Institute of Theoretical Physics, La...