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Bound states in the continuum in a two-dimensional PT - symmetric system

Author
Kartashov, Y.V.; Milián, C.; Konotop, V.; Torner, L.
Type of activity
Journal article
Journal
Optics letters
Date of publication
2018-02-01
Volume
43
Number
3
First page
575
Last page
578
DOI
https://doi.org/10.1364/OL.43.000575 Open in new window
Repository
http://hdl.handle.net/2117/114423 Open in new window
URL
https://www.osapublishing.org/ol/abstract.cfm?uri=ol-43-3-575 Open in new window
Abstract
We address a 2D parity-time (¿¿)-symmetric structure built as a chain of waveguides, where all waveguides except for the central one are conservative, while the central one is divided into two halves with gain and losses. We show that such a system admits bound states in the continuum (BICs) whose properties vary drastically with the orientation of the line separating amplifying and absorbing domains, which sets the direction of internal energy flow. When the flow is perpendicular to the chain...
Citation
Kartashov, Y.V., Milian, C., Konotop, V., Torner, L. Bound states in the continuum in a two-dimensional PT - symmetric system. "Optics letters", 1 Febrer 2018, vol. 43, núm. 3, p. 575-578.
Keywords
Array waveguide devices, Destructive interference, Optical potentials, Photonic crystals, Refractive index, Waveguide cores
Group of research
FOTONICA - Photonics Research Group

Participants

  • Kartashov, Yaroslav V.  (author)
  • Milián, Carles  (author)
  • Konotop, Vladimir V  (author)
  • Torner Sabata, Lluis  (author)

Attachments