| 7 | Pseudospin-2 in photonic chiral borophene显示文摘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 graphene.Here,we study a photonic implementation of a chiral borophene allotrope hosting a pseudospin-2 conical intersection in its energy-momentum spectrum.The presence of this fivefold spectral degeneracy gives rise to quasiparticles with pseudospin up to±2.We 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. | PHILIP MENZ HAISSAM HANAFI DANIEL LEYKAM JÖRG IMBROCK CORNELIA DENZ | 2023 | Photonics Research2023，11，5： | 0 |
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