Plasmonic spin induced Imbert-Fedorov shift.

ABSTRACT: The spin angular momentums of surface plasmon polaritons (SPPs) on chiral material interfaces and the Imbert-Fedorov shifts of linearly polarized light beams are investigated. Compared to a traditional TM-polarized SPP having a transverse spin, the SPP on a chiral material interface also has a longitudinal spin component, resulting from the nature that this new kind of SPP is a hybrid of TE and TM-polarized evanescent waves. When a light beam is incident on a sandwich structure composed of chiral material, prisms, and metal layers, in which the SPP is supported, the reflection and transmission processes can be analogous to the transport of a photon in a waveguide QED system. The SPP with longitudinal spin can be excited by the incident wave and the reflected and transmitted beams carry the

SUBMITTER: You H 

PROVIDER: S-EPMC11501235 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature