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Exceptional points in anisotropic planar microcavities

Richter, Steffen LU ; Michalsky, Tom ; Sturm, Chris ; Rosenow, Bernd ; Grundmann, Marius and Schmidt-Grund, Rüdiger (2017) In Physical Review A 95(2).
Abstract

Planar microcavities allow the control and manipulation of spin polarization, manifested in phenomena like the optical spin Hall effect due to the intrinsic polarization mode splitting. Here, we study a transparent microcavity with broken rotational symmetry, realized by aligning the optic axis of a uniaxial cavity material in the cavity plane, giving rise to exceptional points in the dispersion relation. These occur pairwise, are circularly polarized, and are cores of polarization vortices. The exceptional points are result of the non-Hermitian character of the system and are in close relationship to singular optic axes in absorptive biaxial systems.

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author
; ; ; ; and
publishing date
type
Contribution to journal
publication status
published
in
Physical Review A
volume
95
issue
2
article number
023836
publisher
American Physical Society
external identifiers
  • scopus:85013844692
ISSN
2469-9926
DOI
10.1103/PhysRevA.95.023836
language
English
LU publication?
no
additional info
Publisher Copyright: © 2017 American Physical Society.
id
d3ba0e64-4b1d-4e64-880a-c2c05ae83315
date added to LUP
2022-04-19 14:50:44
date last changed
2022-04-25 16:18:37
@article{d3ba0e64-4b1d-4e64-880a-c2c05ae83315,
  abstract     = {{<p>Planar microcavities allow the control and manipulation of spin polarization, manifested in phenomena like the optical spin Hall effect due to the intrinsic polarization mode splitting. Here, we study a transparent microcavity with broken rotational symmetry, realized by aligning the optic axis of a uniaxial cavity material in the cavity plane, giving rise to exceptional points in the dispersion relation. These occur pairwise, are circularly polarized, and are cores of polarization vortices. The exceptional points are result of the non-Hermitian character of the system and are in close relationship to singular optic axes in absorptive biaxial systems.</p>}},
  author       = {{Richter, Steffen and Michalsky, Tom and Sturm, Chris and Rosenow, Bernd and Grundmann, Marius and Schmidt-Grund, Rüdiger}},
  issn         = {{2469-9926}},
  language     = {{eng}},
  month        = {{02}},
  number       = {{2}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review A}},
  title        = {{Exceptional points in anisotropic planar microcavities}},
  url          = {{http://dx.doi.org/10.1103/PhysRevA.95.023836}},
  doi          = {{10.1103/PhysRevA.95.023836}},
  volume       = {{95}},
  year         = {{2017}},
}