Topological polaritonics with Van der Waals materials

Alexander B. Khanikaev

doi:10.1117/12.2633470

3 October 2022 Topological polaritonics with Van der Waals materials

Alexander B. Khanikaev

Proceedings Volume PC12195, Metamaterials, Metadevices, and Metasystems 2022; PC121951P (2022) https://doi.org/10.1117/12.2633470
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States

Abstract

We report applications of monolayer and multilayer Van der Waals (vdW) materials, transition metal dichalcogenides (TMDCs) and hexagonal boron nitride (hBN), for enhanced and enriched light-matter interactions in topological metasurfaces. First, we show that one can selectively couple spin-polarized edge modes to the valley-polarized excitons in monolayer TMDCs. The resultant exciton-polaritons allow a directional transfer of the valley degree of freedom and spin of excitons. Second, we demonstrate that a similar approach can be applied to phonons in mid-infrared domain, and the transverse vibrations in an hBN film are directionally guided in a resilient manner, avoiding backscattering due to defects.

Conference Presentation

Citation Download Citation

Alexander B. Khanikaev "Topological polaritonics with Van der Waals materials", Proc. SPIE PC12195, Metamaterials, Metadevices, and Metasystems 2022, PC121951P (3 October 2022); https://doi.org/10.1117/12.2633470

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