Xingzhou Tang
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View article: Angular-selective multifunctional optical devices using graphene-embedded one-dimensional photonic crystals
Angular-selective multifunctional optical devices using graphene-embedded one-dimensional photonic crystals Open
The challenge of achieving effective angular selection has garnered significant research interest. In this paper, a one-dimensional photonic crystal (1DPC) containing graphene layers is proposed that enables polarization-insensitive and br…
View article: Terahertz dual-mechanism dual-band linear-to-circular polarization converter with one-octave band separation and orthogonal polarization
Terahertz dual-mechanism dual-band linear-to-circular polarization converter with one-octave band separation and orthogonal polarization Open
Multi-band polarization converters are crucial for reducing coupling between multiple-input multiple-output antenna components, promoting the integration of communication systems, and improving information transmission efficiency. However,…
View article: Reconfigurable Origami Metamaterial for Broadband Absorption and Polarization Conversion
Reconfigurable Origami Metamaterial for Broadband Absorption and Polarization Conversion Open
Origami has lately surfaced as a promising method for designing valuable materials. Inspired by the origami concept, a multifunctional metamaterial derived from an origami structure is proposed. By mechanically stretching or compressing th…
View article: Asymmetric directional transmission-emission based on hyperbolic metastructure covering the short-wave near-infrared region
Asymmetric directional transmission-emission based on hyperbolic metastructure covering the short-wave near-infrared region Open
Stealth and camouflage technology in the infrared band has been a topic of wide interest in recent years. Wave propagation direction control is an important technology to achieve electromagnetic stealth. One-dimensional photonic crystals (…
View article: Theoretical design of manipulating the number of photonic spin Hall effect channels with Tamm plasmon polariton and its sensing capabilities
Theoretical design of manipulating the number of photonic spin Hall effect channels with Tamm plasmon polariton and its sensing capabilities Open
In this paper, the induction effect of Tamm plasmon polariton (TPP) mode on photonic spin Hall effect (PSHE) is discovered. As the incident angle increases, the TPP mode exhibits a polarization separation effect, which is conducive to the …
View article: Generation and Propagation of Flexoelectricity-Induced Solitons in Nematic Liquid Crystals
Generation and Propagation of Flexoelectricity-Induced Solitons in Nematic Liquid Crystals Open
Solitons in nematic liquid crystals facilitate the rapid transport and sensing in microfluidic systems. Little is known about the elementary conditions needed to create solitons in nematic materials. In this study, we apply a combination o…
View article: Jetting and Droplet Formation Driven by Interfacial Electrohydrodynamic Effects Mediated by Solitons in Liquid Crystals
Jetting and Droplet Formation Driven by Interfacial Electrohydrodynamic Effects Mediated by Solitons in Liquid Crystals Open
Solitons are highly confined, propagating waves that arise from nonlinear feedback in natural (e.g., shallow and confined waters) and engineered systems (e.g., optical wave propagation in fibers). Solitons have recently been observed in th…
View article: Generation and propagation of solitary waves in nematic liquid crystals
Generation and propagation of solitary waves in nematic liquid crystals Open
Solitons in nematic liquid crystals offer intriguing opportunities for transport and sensing in microfluidic systems. Little is known about the elementary conditions that are needed to create solitons in nematic materials. In this work, th…
View article: A minimal model of solitons in nematic liquid crystals
A minimal model of solitons in nematic liquid crystals Open
Solitons in liquid crystals have generated considerable interest. Several hypotheses of varying complexity have been advanced to explain how they emerge, and a consensus has not emerged yet about the underlying forces responsible for their…
View article: New determination of the astrophysical S factor SE1 of the C12(α,γ)O16 reaction
New determination of the astrophysical S factor SE1 of the C12(α,γ)O16 reaction Open
A new measurement of the β-delayed α decay of N16 has been performed using a set of high efficiency ionization chambers. Sources were made by implantation of a N16 beam, yielding very clean α spectra down to energies as low as 400 keV. Our…
View article: Programming Solitons in Liquid Crystals Using Surface Chemistry
Programming Solitons in Liquid Crystals Using Surface Chemistry Open
AC electric fields cause three-dimensional orientational fluctuations (solitons) to form and rapidly propagate in confined films of liquid crystals (LCs), offering the basis of a new class of active soft matter (e.g., for accelerating mixi…
View article: Alignment of a topological defect by an activity gradient
Alignment of a topological defect by an activity gradient Open
As a method for controlling active materials, researchers have suggested designing patterns of activity on a substrate, which should guide the motion of topological defects. To investigate this concept, we model the behavior of a single de…
View article: Geometry and mechanics of disclination lines in 3D nematic liquid crystals
Geometry and mechanics of disclination lines in 3D nematic liquid crystals Open
In nematic liquid crystals, disclination lines have several geometric features, which can be characterized by vectors and tensors. Based on these features, the mechanical forces on disclination lines can be calculated.
View article: Annihilation trajectory of defects in smectic-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>C</mml:mi></mml:math>films
Annihilation trajectory of defects in smectic-films Open
In a two-dimensional liquid crystal, each topological defect has a topological charge and a characteristic orientation and hence can be regarded as an oriented particle. Theories predict that the trajectories of annihilating defects depend…
View article: Minimization principle for shear alignment of liquid crystals
Minimization principle for shear alignment of liquid crystals Open
If a static perturbation is applied to a liquid crystal, then the director configuration changes to minimize the free energy. If a shear flow is applied to a liquid crystal, then one might ask: Does the director configuration change to min…
View article: Quantitatively evaluate the white matter changes in Wilson’s disease by neurite orientation dispersion and density imaging
Quantitatively evaluate the white matter changes in Wilson’s disease by neurite orientation dispersion and density imaging Open
Poster: ECR 2019 / C-0468 / Quantitatively evaluate the white matter changes in Wilson’s disease by neurite orientation dispersion and density imaging by: Y. Song 1, J. P. Chu2, X. Tang2, L. Zou2; 1Xiamen/CN, 2Guangzhou/CN
View article: Orientation of topological defects in 2D nematic liquid crystals
Orientation of topological defects in 2D nematic liquid crystals Open
Topological defects are an essential part of the structure and dynamics of all liquid crystals, and they are particularly important in experiments and simulations on active liquid crystals. In a recent paper, Vromans and Giomi [Soft Matter…
View article: Orientation of topological defects in 2D nematic liquid crystals
Orientation of topological defects in 2D nematic liquid crystals Open
Liquid crystal defects have orientations, which can be described by tensors, and which affect their interactions and their motion.