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Pseudospin-1 physics of photonic crystals

WebJul 1, 2024 · The structure of the PhCs considered herein is shown in Fig. 1 (a). There are four identical dielectric rods in one supercell which form isotropic with l x = l y. For a 2D PhC, the dielectric function is homogeneous along the z direction. WebJun 9, 2024 · 近日,物理科学与信息工程学院杨冰教授课题组在拓扑光子学研究领域取得新进展,相关成果以《激发赝自旋d态实现螺旋边界态的单向传播》(Unidirectional propagation of helical edge states via exciting pseudospin d states in two-dimensional photonic crystals)为题发表在物理学类权威期刊《应用物理快报》(《Applied Physics ...

Topological corner states in non-Hermitian photonic crystals

WebApr 7, 2024 · The photonic states of such PCs near the Dirac-like point can be described by an effective spin-orbit Hamiltonian of pseudospin-1. The wave propagation in the positive, … WebWe argue that investigating the interplay between pseudospin-1 physics and classical chaos may constitute a new frontier area of research in relativistic quantum chaos with significant applications. Original language: ... Such systems can be realized in a variety of physical systems ranging from dielectric photonic crystals to electronic ... branch locator commbank https://annuitech.com

How to detect the pseudospin-1/2 Berry phase in a photonic …

WebApr 8, 2024 · The photonic states of such PCs near the Dirac-like point can be described by an effective spin-orbit Hamiltonian of pseudospin-1. The wave propagation in the positive, … WebMar 11, 2008 · R. A. Sepkhanov, Johan Nilsson, C. W. J. Beenakker. We propose a method to detect the geometric phase produced by the Dirac-type band structure of a triangular … WebApr 8, 2024 · The photonic states of such PCs near the Dirac-like point can be described by an effective spin-orbit Hamiltonian of pseudospin-1. The wave propagation in the positive, negative, and zero index media can be unified within a framework of … branch locator first citizens bank

Effective medium theory for a photonic pseudospin-$\\frac{1}{2}

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Pseudospin-1 physics of photonic crystals

[2210.09491] Large-area quantum-spin-Hall waveguide states in a …

WebApr 9, 2024 · In this study, an artificial neural network that can predict the band structure of 2-D photonic crystals is developed. Three kinds of photonic crystals in a square lattice, triangular lattice, and honeycomb lattice and two kinds of materials with different refractive indices are investigated. Using the length of the wave vectors in the reduced Brillouin …

Pseudospin-1 physics of photonic crystals

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WebOct 29, 2024 · The Special Issue on “Sonic and Photonic Crystals” is focused on broad applications of the results involving characterizations of the sonic and photonic crystal properties. The applications of photonic crystals were presented in this special issue. The gradient cavity, waveguide, switch, and spatial beam filtering with autocloned photonic ... Web期刊:Applied Physics Letters文献作者:Wenjie Sui; Yu Zhang; Zirui Zhang; Hongfang Zhang; Zengtao Lv; Qiang Shi; Dong Zhang; Bing Yang出版日期:2024-3-1 ...

WebApr 8, 2024 · Photonic Crystals Pseudospin-1 Physics of Photonic Crystals CC BY 4.0 Authors: A. Fang Zhao-Qing Zhang The Hong Kong University of Science and Technology … WebThe photonic states of such PCs near the Dirac-like point can be described by an effective spin-orbit Hamiltonian of pseudospin-1. The wave propagation in the positive, negative, …

WebApr 8, 2024 · [PDF] Pseudospin-1 Physics of Photonic Crystals Semantic Scholar Some physical implications of the PCs exhibiting an accidental degeneracy induced conical dispersion at the Γ point, such as the realization of zero refractive index medium and the zero Berry phase of a loop around the nodal point are shown. WebFinite-size effect plays a significant role in topology photonics not to mention in reality all experimental setups are in finite-size. A photonic bandgap is opened in the topological edge state dispersion if a topological photonic crystal with finite width is considered, and the bandgap size relies on the finite-size effect. Pseudospin-preserving and pseudospin …

WebReviewArticle Pseudospin-1 Physics of Photonic Crystals A.Fang1,Z.Q.Zhang1,StevenG.Louie2,3,4,andC.T.Chan1, DepartmentofPhysics,e ...

WebDec 1, 2024 · Pseudospin-1 photonic system is hence a good candidate since the PCs are all dielectric so that they have low loss even at high frequencies. Recently, experimental realization of complementary... branch locator dbieWebPseudospin-1 PCs It is well known that the lattice symmetry of the D PCs with a triangular lattice guarantees the existence of Dirac cones at the Brillouin zone corners with a … branch locator from ifsc codeWebApr 18, 2024 · Abstract. We discovered unique Anderson localization behaviors of pseudospin systems in a 1D disordered potential. For a pseudospin-1 system, due to the absence of backscattering under normal incidence and the presence of a conical band structure, the wave localization behaviors are entirely different from those of conventional … branch locator schwabWebApr 8, 2024 · We review some recent progress in the exploration of pseudospin-1 physics using dielectric photonic crystals (PCs). We show some physical implications of the PCs exhibiting an acc hago facility management gmbh barthWebWe review some recent progress in the exploration of pseudospin-1 physics using dielectric photonic crystals (PCs). We show some physical implications of... DOAJ is a community … hagod recipeWebApr 8, 2024 · A pseudospin-1 system is characterized by two linear bands meeting and intersecting with an additional flat band at a Dirac-like point. Such systems have attracted … hago facility management gmbh dinslakenWeb(2024) Fang et al. Research. We review some recent progress in the exploration of pseudospin-1 physics using dielectric photonic crystals (PCs). We show some physical … hago cleaning