Limitations of the transmitted photonic spin Hall effect through layered structure.

ABSTRACT: In this paper, we show theoretically that the spin-dependent transverse shift of the transmitted photonic spin Hall effect (SHE) through layered structure cannot exceed half of the incident beam waist. Exact conditions for obtaining the upper limit of the transmitted SHE are clarified in detail. In addition, different from the popular view in many investigations, we find that there is no positive correlation between the spin-dependent transverse displacement and the ratio between the Fresnel transmission coefficients (t_p, t_s). In contrast, the optimal transmission ratio is determined by the incident angle and the beam waist. Moreover, two conventional transmission structures are selected and studied in detail. The characteristics of the transverse displacements obtain

SUBMITTER: Miao C 

PROVIDER: S-EPMC8548548 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature