Spin-selective currents of Tamm Polaritons

Sedov, Evgeny, Glazov, Mikhail and Kavokin, Alexey (2022) Spin-selective currents of Tamm Polaritons. Physical Review Applied, 17 (2), [024037]. (doi:10.1103/PhysRevApplied.17.024037).

Record type: Article

Abstract

We propose an approach for the excitation of polariton Tamm states with a controllable nontrivial topology. The Tamm polaritons emerge at the interface of two binary one-dimensional photonic crystals belonging to a C3v point group, with an exciton resonance within their matching band gaps. The external magnetic field applied in the Faraday geometry endows the dispersion of the Tamm polaritons with the nonreciprocity: it lifts the degeneracy between opposite propagation directions in the interface plane. The phenomenology of Tamm polariton currents closely resembles one of a Z2 topological insulator. The proposed structure acts as an optical spin splitter controlled by the magnetic field magnitude.

Text

tamm03 - Accepted Manuscript

Available under License University of Southampton Accepted Manuscript Licence.

Download (10MB)

Text

PhysRevApplied.17.024037 - Version of Record

Restricted to Repository staff only

Request a copy

More information

Accepted/In Press date: 24 January 2022

e-pub ahead of print date: 14 February 2022

Published date: 14 February 2022

Additional Information: Funding Information: A.K. acknowledges the support of Westlake University, Project 041020100118 and Program 2018R01002 funded by Leading Innovative and Entrepreneur Team Introduction Program of Zhejiang Province of China. The Russian Foundation for Basic Research (Grant No. 21-52-10005), Saint-Petersburg State University (Grant No. 91182694), the Grant of the President of the Russian Federation for state support of young Russian scientists (No. MK-4729.2021.1.2), and the Royal Society International Exchange Grant No. IEC/R2/202148 are acknowledged. Publisher Copyright: © 2022 American Physical Society.