Pseudospin-2 in photonic chiral borophene

作     者：PHILIP MENZ HAISSAM HANAFI DANIEL LEYKAM JÖRG IMBROCK CORNELIA DENZ 

作者机构：Institute of Applied PhysicsUniversity of MuensterMuenster 48149Germany Centre for Quantum TechnologiesNational University of SingaporeSingapore 117543Singapore Physikalisch-Technische Bundesanstalt(PTB)38116 BraunschweigGermany 

出 版 物：《Photonics Research》 (光子学研究（英文版）)

年 卷 期：2023年第11卷第5期

页      面：869-877页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：Westfalische Wilhelms-Universitat Munster 

主　　题：spectrum chiral momentum 

摘      要：Pseudospin is an angular momentum degree of freedom introduced in analogy to the real electron spin in the effective massless Dirac-like equation used to describe wave evolution at conical intersections such as the Dirac cones of ***,we study a photonic implementation of a chiral borophene allotrope hosting a pseudospin-2 conical intersection in its energy-momentum *** presence of this fivefold spectral degeneracy gives rise to quasiparticles with pseudospin up to±*** report on conical diffraction and pseudospin-orbit interaction of light in photonic chiral borophene,which,as a result of topological charge conversion,leads to the generation of highly charged optical phase vortices.