Spin-dependent Klein tunneling in polariton graphene with photonic spin-orbit interaction

Article

关键词: CONDENSATION;    REFLECTION;    ELECTRONS;    MODEL;   

DOI  :  10.1103/PhysRevB.93.085404

来源: SCIE

【 摘 要 】

We study Klein tunneling in polariton graphene. We show that the photonic spin-orbit coupling associated with the energy splitting between TE and TM photonic modes can be described as an emergent gauge field. It suppresses the Klein tunneling in a small energy range close to the Dirac points. Thanks to polariton spin-anisotropic interactions, polarized optical pumping allows one to create potential barriers acting on a single polariton spin. We show that the resulting spin-dependent Klein tunneling can be used to create a perfectly transmitting polarization rotator operating at microscopic scale.

【 授权许可】

Free