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Relevant bibliographies by topics / Liquid crystal defect

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Academic literature on the topic 'Liquid crystal defect'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "Liquid crystal defect"

1

Yin, Xin Xing, Ying Mao Xie, Hui Zhen Wang, and Rui Lin Xiao. "The Defect Modes Property Controlled by Temperature in One Dimensional Photonic Crystal with Liquid Crystal Defect Layer." Advanced Materials Research 586 (November 2012): 206–9. http://dx.doi.org/10.4028/www.scientific.net/amr.586.206.

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The 5CB liquid crystal as defects will be introduced to one dimensional photonic crystal, taking advantage of temperature property of liquid crystal refractive index, the transmission spectrum of one dimensional liquid crystal defect photonic crystal defect modes was researched by the transfer matrix method(TMM). The numerical results indicated that when the temperature went up, one dimensional liquid crystal defect photonic crystal defect modes removed towards the long wavelength. When the temperature increased from 273k to 320k, the defect modes wavelength from 5121nm drifted to 5508nm, the wavelength shift was 387nm and the maximum of temperature sensitivity was 10.85nm/K, it was also observed that the temperature sensitivity decreased as the temperature increased.

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Bingxiang Li, Bingxiang Li, Yingmao Xie Yingmao Xie, and Xinghua Wang Xinghua Wang. "Electro-tunable localized modes in 2D nematic-liquid-crystal photonic crystal with a point defect." Chinese Optics Letters 10, s2 (2012): S21602–321604. http://dx.doi.org/10.3788/col201210.s21602.

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ZHOU, CHUNFENG, PENGTAO YUE, and JAMES J. FENG. "The rise of Newtonian drops in a nematic liquid crystal." Journal of Fluid Mechanics 593 (November 23, 2007): 385–404. http://dx.doi.org/10.1017/s0022112007008889.

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We simulate the rise of Newtonian drops in a nematic liquid crystal parallel to the far-field molecular orientation. The moving interface is computed in a diffuse-interface framework, and the anisotropic rheology of the liquid crystal is represented by the Leslie–Ericksen theory, regularized to permit topological defects. Results reveal interesting coupling between the flow field and the orientational field surrounding the drop, especially the defect configuration. The flow generally sweeps the point and ring defects downstream, and may transform a ring defect into a point defect. The stability of these defects and their transformation are depicted in a phase diagram in terms of the Ericksen number and the ratio between surface anchoring and bulk elastic energies. The nematic orientation affects the flow field in return. Drops with planar anchoring on the surface rise faster than those with homeotropic anchoring, and the former features a vortex ring in the wake. These are attributed to the viscous anisotropy of the nematic. With homeotropic anchoring, the drop rising velocity experiences an overshoot, owing to the transformation of the initial surface ring defect to a satellite point defect. With both types of anchoring, the drag coefficient of the drop decreases with increasing Ericksen number as the flow-alignment of the nematic orientation reduces the effective viscosity of the liquid crystal.

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Ding, Ding-kuo, and Edwin L. Thomas. "Investigation of defect structures of thermotropic liquid crystal polymers by optical and scanning EM." Proceedings, annual meeting, Electron Microscopy Society of America 50, no. 1 (August 1992): 274–75. http://dx.doi.org/10.1017/s0424820100121776.

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The integer defect structures of semi-flexible thermotropic polyester (MHDT) based on 1,10-decane bisterephthaloyl chloride with methyl hydroquinone were investigated by optical microscopy (OM) and scanning electron microscopy (SEM). Liquid crystals, in general, are characterized by a unit vector called the director, n, which indicates the locally preferred orientation of molecules. Different types of defects, which were described by their strength, s, defined by the total change of the orientation of the director around the singularity divided by 2л, are imaged in the director fields. The integer defects of s=±1, in liquid crystal polymers were revealed by OM and SEM using the lamellar decoration technique developed in this laboratory.

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PHILLIPS, P. M., and A. D. REY. "Characterising texture formation in fibre lattices embedded in a nematic liquid crystal matrix." European Journal of Applied Mathematics 23, no. 1 (January 28, 2011): 155–80. http://dx.doi.org/10.1017/s0956792510000331.

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A two-dimensional computational study is performed on the texturing of fibre-filled nematic liquid crystals using the Landau-de Gennes model describing the spatio-temporal evolution of the second moment of the orientation distribution function or quadrupolar tensor order parameter. The investigation is performed on a consistent computational domain comprising a square array of four circular fibres embedded within a unit square containing a uniaxial low molar mass calamitic liquid crystal. Interest is focused on the role of temperature, boundary conditions and their effect on the nucleation and evolution of defect structures. Thermal effects are characterised below and above the temperature at which the nematic state is stable. Simulations in the stable nematic state serves as a scenario for investigating the effect of imposing different external boundary conditions, namely periodic and Dirichlet; the former describes a square lattice array of fibres embedded in a nematic liquid crystal, and the latterdescribes a four-fibre arrangement in an aligned nematic material. In each case, the influence of temperature is characterised, with defect structures forming and either remaining or splitting into lower strength defects. For fibre lattices, splitting transitions of defects at the centre of the domain occur at a critical temperature, but for the four-fibre arrangement, defect transitions occur continuously over a temperature range. The discontinuous defect splitting transition in fibre arrays occurs at lower temperatures than the continuous defect transformation in the four-fibre arrangement. At sufficiently low temperatures, the four-fibre arrangement and the fibre lattice give the same texture consisting of two disclination lines close to each fibre. The evolution of the texture with respect to temperature can be characterised as a change from single-fibre mode at low temperature to a collective mode with a centre-located heterogeneity at higher temperature. At higher temperatures, in the stable isotropic state, it is shown that surface-induced ordering arising from the fibre/liquid crystal interaction propagates into the bulk forming thin disclination lattices around the four-fibre configuration.

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Ozaki, Ryotaro, Hirotaka Miyoshi, Masanori Ozaki, and Katsumi Yoshino. "Tunable Defect Mode in One-Dimensional Photonic Crystal with Liquid Crystal Defect Layer." Molecular Crystals and Liquid Crystals 433, no. 1 (June 2005): 247–57. http://dx.doi.org/10.1080/15421400590957792.

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Tsung, Jieh-Wen, Ya-Zi Wang, Sheng-Kai Yao, and Shih-Yu Chao. "Crystal-like topological defect arrays in nematic liquid crystal." Applied Physics Letters 119, no. 12 (September 20, 2021): 121906. http://dx.doi.org/10.1063/5.0064303.

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Kléman, M. "Defects in Liquid-Crystalline Polymers." MRS Bulletin 20, no. 9 (September 1995): 23–28. http://dx.doi.org/10.1557/s0883769400034898.

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The properties of imperfections (or defects) of the atomic or molecular order in condensed matter can be conveniently described under two headings: (1) Topological properties—Defects break a specific symmetry of the ordered system at a local scale, that is, along a point defect, a line defect (a dislocation or a disclination), or a surface defect (a wall). (2) Elastic properties—Defects are sources of two types of distortions of the order: long-range distortions, which depend crucially on the broken symmetry but also on the material constants, and short-range distortions in the “core” region of the defect where the order parameter of the ordered phase is broken. These distortions are irreversible in the sense that defects appear during plastic deformation (in solids) or rheological flow (in liquid crystals).To illustrate this classification, let us recall the example of dislocation lines in solids. These defects break translational symmetries (henceforth a dislocation is defined topologically by the translation b it breaks, the so-called Burgers vector). They are at the origin of rather weak, long-range, internal distortions and stresses that depend on the elastic constants (in the region of the good crystal) and rather strong, short-range distortions and stresses in the “core” region, implying a complete rearrangement of the molecular order. These stresses are different in the static and dynamic states, and the shape of the dislocation line, as well as its size, etc., depend on the history of the sample.In this article, we will focus on defects in liquid-crystalline polymers. A synthetic polymer that displays mesomorphic order (intermediate between crystalline and liquid) is usually made of units that are themselves mesogenic and that align coherently when in contact.

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Darmon, Alexandre, Michael Benzaquen, David Seč, Simon Čopar, Olivier Dauchot, and Teresa Lopez-Leon. "Waltzing route toward double-helix formation in cholesteric shells." Proceedings of the National Academy of Sciences 113, no. 34 (August 4, 2016): 9469–74. http://dx.doi.org/10.1073/pnas.1525059113.

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Liquid crystals, when confined to a spherical shell, offer fascinating possibilities for producing artificial mesoscopic atoms, which could then self-assemble into materials structured at a nanoscale, such as photonic crystals or metamaterials. The spherical curvature of the shell imposes topological constraints in the molecular ordering of the liquid crystal, resulting in the formation of defects. Controlling the number of defects, that is, the shell valency, and their positions, is a key success factor for the realization of those materials. Liquid crystals with helical cholesteric order offer a promising, yet unexplored way of controlling the shell defect configuration. In this paper, we study cholesteric shells with monovalent and bivalent defect configurations. By bringing together experiments and numerical simulations, we show that the defects appearing in these two configurations have a complex inner structure, as recently reported for simulated droplets. Bivalent shells possess two highly structured defects, which are composed of a number of smaller defect rings that pile up through the shell. Monovalent shells have a single radial defect, which is composed of two nonsingular defect lines that wind around each other in a double-helix structure. The stability of the bivalent configuration against the monovalent one is controlled by c = h/p, where h is the shell thickness and p the cholesteric helical pitch. By playing with the shell geometry, we can trigger the transition between the two configurations. This transition involves a fascinating waltz dynamics, where the two defects come closer while turning around each other.

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Putzig, Elias, Gabriel S. Redner, Arvind Baskaran, and Aparna Baskaran. "Instabilities, defects, and defect ordering in an overdamped active nematic." Soft Matter 12, no. 17 (2016): 3854–59. http://dx.doi.org/10.1039/c6sm00268d.

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Dissertations / Theses on the topic "Liquid crystal defect"

1

Ferris, Andrew J. PhD. "Chiral Induction and Defect Structures in Liquid Crystal Systems." Case Western Reserve University School of Graduate Studies / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=case159293629900968.

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Kasch, Nicholas. "Liquid crystal-polymer composites and the stabilisation of defect phases." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/liquid-crystalpolymer-composites-and-the-stabilisation-of-defect-phases(ee813754-56cd-493c-a631-d58b06d03c00).html.

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A simple method for increasing the stable temperature range of the liquid crystalline blue phase is demonstrated, by mixing a non-mesogenic polymer of low molecular weight into the blue phase material. In a mixture of cholesteryl benzoate and cholesteryl nonanoate the addition of polystyrene increased the stable blue phase range from 0.5K to 12K. This was measured strictly on heating from the chiral nematic phase through the blue phase in order to minimise non-equilibrium effects, and is one of the largest ranges so measured. The stability range can be closely tuned by changing the polymer concentration and molecular weight. The maximum range found by adding a particular compound seems only to depend on its saturation point in the liquid crystal, and the dependence of the range on concentration is non-linear. These features were explained by a numerical model of a blue phase unit cell incorporating the mean field Flory-Huggins and Maier-Saupe theories where the polymer could fill the high energy defect regions. Two of the oligomers which are shown to stabilise the blue phase are fluorescent, at 450nm and 500nm respectively, and it is proposed that tests on these mixtures could reveal photonic effects caused by the concentration of the fluorophores in the blue phase defect regions. The twist-grain boundary (TGB) phase is present in mixtures of cholesteryl oleyl carbonate and cholesteryl nonanoate over a range of up to 0.3K. The addition of polystyrene has no effect on the stability of the TGB phase. Conventional, in situ UV-initiated polymer stabilisation does not appear to stabilise the TGB phase, but is capable of stabilising over at least 30K the micron-size filaments which appear in the TGB phase when it is heated from the smectic phase in a cell with homeotropic alignment. Some notes are made on the causes and structure of this filament texture, and it is observed that the filaments tend to grow with a characteristic curvature. It is shown theoretically that the correct material could stabilise the TGB phase similarly to the polymers in the blue phase, by extending the previous model to include the Kobayashi-McMillan theory of smectic ordering. A second theoretical model of chirality around the transition to the smectic phase is then presented which takes account of fluctuations, based on an analogy with the state of a smectic-forming material infiltrated into an aerogel. A phase resembling the TGB phase emerges from this model. The model gives two first order transitions in accordance with experiments on the TGB phase, and reflects other experimental pitch and calorimetry measurements too. The electrochemical polymerisation of an acrylate monomer in the nematic and smectic-C* phases is investigated. 30-100V is applied across a cell containing the liquid crystal-monomer mixture, with no additional initiating compound. In both phases, the texture during polymerisation is frozen in by the polymer formed. In a nematic phase in a cell with initially planar alignment, the director in the field off state can be observed to tilt toward the homeotropic over a number of hours. In the ferroelectric case, as well as the textural freezing there is a somewhat reversible agglomeration of polymer strands into micron-scale structures. Scanning electron microscopy reveals a range of structures on both electrode surfaces, including in the nematic case corrugations with a periodicity of 500-750nm. There is no evidence of a polymer network spanning the thickness of the cell - rather the liquid crystal seems to be realigned by a polymer film at the electrode surfaces.

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Afghah, Seyedeh Sajedeh. "MODELING SKYRMIONS, DEFECT TEXTURES, AND ELECTRICAL SWITCHINGIN LIQUID CRYSTALS." Kent State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=kent1532952208004472.

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Zhang, Chiqun. "Theory and Computation of Line Defect Fields in Solids and Liquid Crystals." Research Showcase @ CMU, 2017. http://repository.cmu.edu/dissertations/1058.

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The theory and computation of line defects are discussed in the context of both solids and liquid crystals. This dissertation includes four parts. The Generalized Disclination theory is discussed and applied to numerous interfacial and bulk line defect problems. An augmented Oseen-Frank energy as well as a novel 2D-model is proposed and demonstrated for disclination dynamics in liquid crystal. A model based on kinematics and thermodynamics is devised to predict tactoid dynamics during the process of the isotropic-nematic phase transition in LCLC. In the first part of the thesis, the utility of the notion of generalized disclinations in materials science is discussed within the physical context of modeling interfacial and bulk line defects. The Burgers vector of a disclination dipole in linear elasticity is derived, clearly demonstrating the equivalence of its stress field to that of an edge dislocation. An explicit formula for the displacement jump of a single localized composite defect line in terms of given g.disclination and dislocation strengths is deduced based on the Weingarten theorem for g.disclination theory at finite deformation. The Burgers vector of a g.disclination dipole at finite deformation is also derived. In the second part, a numerical method is developed to solve for the stress and distortion fields of g.disclination systems. Problems of small and finite deformation theory are considered. The fields of various line defects and grain/phase boundary problems are approximated. It is demonstrated that while the far-field topological identity of a dislocation of appropriate strength and a disclinationdipole plus a slip dislocation comprising a disconnection are the same, the latter microstructure is energetically favorable. This underscores the complementary importance of all of topology, geometry, and energetics (plus kinetics) in understanding defect mechanics. It is established that finite element approximations of fields of interfacial and bulk line defects can be achieved in a systematic and routine manner, thus contributing to the study of intricate defect microstructures in the scientific understanding and predictive design of materials. In the third part, nonsingular disclination dynamics in a uniaxial nematic liquid crystal is modeled within a mathematical framework where the kinematics is a direct extension of the classical way of identifying these line defects with singularities of a unit vector field representing the nematic director. We devise a natural augmentation of the Oseen-Frank energy to account for physical situations where infinite director gradients have zero associated energy cost, as would be necessary for modeling half-integer strength disclinations within the framework of the director theory. A novel 2D-model of disclination dynamics in nematics is proposed, which is based on the extended Oseen-Frank energy and takes into account thermodynamics and the kinematics of conservation of defect topological charge. We validate this model through computations of disclination equilibria, annihilation, repulsion, and splitting. In the fourth part, the isotropic-nematic phase transition in chromonic liquid crystals is studied. We simulate such tactoid equilibria and dynamics with a model using degree of order, a variable length director as state descriptors, and an interfacial descriptor. We introduce an augmented Oseen-Frank energy, with non-convexity in both interfacial energy and the dependence of the energy on the degree of order. A strategy is devised based on continuum kinematics and thermodynamics. The model is used to predict tactoid dynamics during the process of phase transition. We reproduce observed behaviors in experiments and perform an experimentally testable parametric study of the effect of bulk elastic and tactoid interfacial energy constants on the interaction of interfacial and bulk fields in the tactoids.

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Murray, Bryce S. Murray. "Anchoring-Induced Topological Defects in Nematic Liquid Crystals: Core Relaxation Mechanisms and Electro-Optics." Case Western Reserve University School of Graduate Studies / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=case1531143058239933.

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Angelo, Joseph S. Angelo. "Direct Mechanical Observation of Surface Anchoring and Disclinations Using Dynamically Reconfigurable Liquid Crystal Cell." Kent State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=kent1532646624675951.

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Schulz, Benjamin, Daniela Täuber, Jörg Schuster, Thomas Baumgärtel, and Borczyskowski Christian von. "Influence of mesoscopic structures on single molecule dynamics in thin smectic liquid crystal films." Universitätsbibliothek Chemnitz, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-122240.

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Mesoscopic structures in liquids have an impact on the diffusion dynamics of the constituting molecules. Smectic 8CB liquid crystals on silicon wafers show the formation of mesoscopic structures on the μm scale at a film thickness of 200 nm. Depending on the kind of substrate (thermally grown or native SiOx), we observed the formation of focal conic domains (FCDs) and a new type of terraced holes, respectively. Dynamics are described via single perylene diimide tracer molecule tracking of translational diffusion and in the case of FCDs by a combination of translation and rotation detected via fluorescence correlation spectroscopy. Tailoring perylene diimide molecules such that the optical transition dipole moment follows the liquid crystal director allows mapping out FCDs and investigating the dynamics within a single FCD.

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Jiang, Miao. "DESIGNS AND APPLICATIONS OF PLASMONIC METAMASKS FOR TOPOLOGICAL DEFECT ENGINEERING AND MANUFACTURING OF PANCHARATNAM FLAT OPTICAL ELEMENTS." Kent State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=kent1533742796947775.

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Schulz, Benjamin, Daniela Täuber, Jörg Schuster, Thomas Baumgärtel, and Borczyskowski Christian von. "Influence of mesoscopic structures on single molecule dynamics in thin smectic liquid crystal films." Soft Matter, 2011,7, S. 7431-7440, 2011. https://monarch.qucosa.de/id/qucosa%3A19943.

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Mesoscopic structures in liquids have an impact on the diffusion dynamics of the constituting molecules. Smectic 8CB liquid crystals on silicon wafers show the formation of mesoscopic structures on the μm scale at a film thickness of 200 nm. Depending on the kind of substrate (thermally grown or native SiOx), we observed the formation of focal conic domains (FCDs) and a new type of terraced holes, respectively. Dynamics are described via single perylene diimide tracer molecule tracking of translational diffusion and in the case of FCDs by a combination of translation and rotation detected via fluorescence correlation spectroscopy. Tailoring perylene diimide molecules such that the optical transition dipole moment follows the liquid crystal director allows mapping out FCDs and investigating the dynamics within a single FCD.

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10

Wang, Mengfei Wang. "Photo-alignment of orientationally patterned surface for disclination generation and optical applications." Kent State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=kent153273906099599.

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Books on the topic "Liquid crystal defect"

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NATO, Advanced Research Workshop on Incommensurate Crystals Liquid Crystals and Quasi-Crystals (1986 Boulder Colo ). Incommensurate crystals, liquid crystals, and quasi-crystals. New York: Plenum Press, 1987.

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NATO, Advanced Research Workshop on From Geometry to Thermodynamics (1989 Preveza Greece). Geometry and thermodynamics: Common problems of quasi-crystals, liquid crystals, and incommensurate systems. New York: Plenum Press, 1990.

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Lavrentovich, Oleg D., Paolo Pasini, Claudio Zannoni, and Slobodan Žumer, eds. Defects in Liquid Crystals: Computer Simulations, Theory and Experiments. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0512-8.

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Lavrentovich, Oleg D. Defects in Liquid Crystals: Computer Simulations, Theory and Experiments. Dordrecht: Springer Netherlands, 2001.

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Scott, J. F. Incommensurate Crystals, Liquid Crystals, and Quasi-Crystals. Springer, 2012.

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Incommensurate Crystals, Liquid Crystals, and Quasi-Crystals (NATO Science Series: B:). Springer, 1988.

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D, Lavrentovich Oleg, North Atlantic Treaty Organization. Scientific Affairs Division., and NATO Advanced Study Research Workshop on Computer Simulations of Defects in Liquid Crystals Including their Relation to Theory and Experiment (2000 : Erice, Italy), eds. Defects in liquid crystals: Computer simulations, theory, and experiments. Dordrecht: Kluwer Academic Publishers, 2001.

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Defects in Liquid Crystals: Computer Simulations, Theory and Experiments (NATO Science Series II: Mathematics, Physics and Chemistry). Springer, 2001.

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E, Cladis P., Palffy-Muhoray P, and Saupe Alfred 1925-, eds. Dynamics and defects in liquid crystals: A festschrift in honor of Alfred Saupe. Amsterdam: Gordon and Breach Science Publishers, 1998.

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(Editor), Oleg D. Lavrentovich, Paolo Pasini (Editor), Claudio Zannoni (Editor), and Slobodan Zumer (Editor), eds. Defects in Liquid Crystals: Computer Simulations, Theory and Experiments (Nato Science Series: II: Mathematics, Physics and Chemistry (Paper), Vol 43). Springer, 2001.

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Book chapters on the topic "Liquid crystal defect"

1

Nasuno, S., M. Sano, and Y. Sawada. "Defect Turbulence in EHD Convection of Liquid Crystal." In Springer Series in Synergetics, 323–25. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-74554-6_80.

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Pelcovits, R. A., J. L. Billeter, A. M. Smondyrev, and G. B. Loriot. "Topological Defect Behavior in a Quenched Nematic Liquid Crystal." In Defects in Liquid Crystals: Computer Simulations, Theory and Experiments, 141–65. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0512-8_6.

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Pelliser, L., D. Coursault, and E. Lacaze. "Formation of Nanoparticle Chains Within Liquid Crystal Defect Arrays." In Springer Proceedings in Physics, 51–59. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-7675-7_4.

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Lin, Hong-Dar, and Singa Wang Chiu. "Computer-Aided Vision System for MURA-Type Defect Inspection in Liquid Crystal Displays." In Advances in Image and Video Technology, 442–52. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11949534_44.

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Stark, H., A. Borštnik, and S. Žumer. "Liquid Crystal Colloidal Dispersions." In Defects in Liquid Crystals: Computer Simulations, Theory and Experiments, 37–85. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0512-8_3.

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Ball, John M. "Liquid Crystals and Their Defects." In Mathematical Thermodynamics of Complex Fluids, 1–46. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-67600-5_1.

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Blinov, Lev M. "Elasticity and Defects." In Structure and Properties of Liquid Crystals, 189–231. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-8829-1_8.

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Goodby, J. W. "Introduction to Defect Textures in Liquid Crystals." In Handbook of Visual Display Technology, 1–23. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-35947-7_82-2.

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Goodby, J. W. "Introduction to Defect Textures in Liquid Crystals." In Handbook of Visual Display Technology, 1289–314. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-540-79567-4_82.

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Belyakov, Vladimir. "Optical Defect Modes in Chiral Liquid Crystals." In Diffraction Optics of Complex-Structured Periodic Media, 149–83. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-43482-7_6.

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Conference papers on the topic "Liquid crystal defect"

1

Tsung, Jieh-Wen. "Topological defect array in nematic liquid crystal." In Liquid Crystals XXIII, edited by Iam Choon Khoo. SPIE, 2019. http://dx.doi.org/10.1117/12.2528812.

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Ali, Taimoor, Jia-De Lin, Yuping Shi, Steve J. Elston, and Stephen M. Morris. "Developing flexible liquid crystal defect mode lasers." In Emerging Liquid Crystal Technologies XV, edited by Liang-Chy Chien and Dirk J. Broer. SPIE, 2020. http://dx.doi.org/10.1117/12.2545752.

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Araoka, Fumito, Shuji Fujii, Hiroshi Orihara, Yuji Sasaki, and Khoa Le. "Polymer-stabilized liquid crystalline topological defect network for micro-pixelated optical devices." In Emerging Liquid Crystal Technologies XIII, edited by Igor Muševič, Liang-Chy Chien, Dirk J. Broer, and Vladimir G. Chigrinov. SPIE, 2018. http://dx.doi.org/10.1117/12.2299505.

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Wu, Po-Chang, and Wei Lee. "One-dimensional photonic crystals containing memory-enabling liquid-crystal defect layers." In SPIE Organic Photonics + Electronics, edited by Iam Choon Khoo. SPIE, 2013. http://dx.doi.org/10.1117/12.2023420.

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Li, Bingxiang, and Yingmao Xie. "Electrical-tunable one dimensional photonic crystal laser with single liquid crystal defect layer." In 2011 International Conference on Remote Sensing, Environment and Transportation Engineering (RSETE). IEEE, 2011. http://dx.doi.org/10.1109/rsete.2011.5965708.

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He, Jian, Joseph Novak, Yinli Jiang, Zhonglei Li, and Rena Huang. "Wavelength switchable terahertz filter based on photonic crystal with liquid-crystal defect layer." In Photonics and Optoelectronics Meetings 2011, edited by Jianquan Yao, X. C. Zhang, Dapeng Yan, and Jinsong Liu. SPIE, 2012. http://dx.doi.org/10.1117/12.918823.

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Oseev, Aleksandr, Marc-Peter Schmidt, Ralf Lucklum, Mikhail Zubtsov, and Soeren Hirsch. "Phononic crystal based liquid sensor governed by localized defect resonances." In 2015 IEEE International Ultrasonics Symposium (IUS). IEEE, 2015. http://dx.doi.org/10.1109/ultsym.2015.0053.

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Kato, Jun-ichi. "Defect enhancement of periodic structure using dye-doped liquid-crystal cells." In 17th Congress of the International Commission for Optics: Optics for Science and New Technology. SPIE, 1996. http://dx.doi.org/10.1117/12.2299153.

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Zhencai Zhu, W. Qk, Jianxin Shao, and Ruli Wang. "Defect Elimination And Properties Of Thin Surface Stabilized Ferroelectric Liquid Crystal Cells." In 1997 Asian Symposium on Information Display. IEEE, 1997. http://dx.doi.org/10.1109/asid.1997.631427.

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Ferrier, S. "Thermal and Optical Enhancements to Liquid Crystal Hot Spot Detection Methods." In ISTFA 1997. ASM International, 1997. http://dx.doi.org/10.31399/asm.cp.istfa1997p0057.

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Abstract:

Abstract Three enhancements to Liquid Crystal hot spot detection improve thermal and optical sensitivity while substantially maintaining simplicity, safety and relative low cost. These enhancements have permitted detection of hot spots unidentifiable by traditional LC methods. Details, capabilities and limitations of the enhancements are discussed, results of rudimentary defect thermal modeling are presented, and an improved metric for evaluating LC technique sensitivity is proposed.

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