Exceptional Points in the Dispersion of Optically Anisotropic Planar Microcavities

0501966 - FZÚ 2019 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Richter, Steffen - Zuniga-Perez, J. - Deparis, Ch. - Trefflich, L. - Zirnstein, H.G. - Sturm, C. - Rosenow, B. - Grundmann, M. - Schmidt-Grund, R.
Exceptional Points in the Dispersion of Optically Anisotropic Planar Microcavities.
IEEE Photonics Society Summer Topicals Meeting Series. SUM 2018. Piscataway: IEEE, 2018, s. 195-196. ISBN 978-153865343-2.
[IEEE Photonics Society Summer Topical Meeting Series SUM 2018. VillageWaikoloa (US), 09.07.2018-11.07.2018]
Grant CEP: GA MŠMT EF16_019/0000789; GA MŠMT LQ1606
Grant ostatní: OP VVV - ADONIS(XE) CZ.02.1.01/0.0/0.0/16_019/0000789
Institucionální podpora: RVO:68378271
Klíčová slova: microcavities * optical polarization * optical vortices * physics * photonics * geometrical optics * cavity resonators
Obor OECD: Fluids and plasma physics (including surface physics)

When incorporating anisotropic materials, planar microcavities can give rise to exceptional points, i.e. propagation directions along which two otherwise polarization-split photonic modes degenerate in energy and broadening. They are non-Hermitian degeneracies revealing complex-square-root topology and chiral eigenstates. We show computations and experiments on ZnO-based microcavities.
Trvalý link: http://hdl.handle.net/11104/0293935