Exceptional-point dynamics in photonic honeycomb lattices with PT symmetry

Hamidreza Ramezani, Tsampikos Kottos, Vassilios Kovanis, Demetrios N. Christodoulides

Research output: Contribution to journalArticle

67 Citations (Scopus)

Abstract

We theoretically investigate the flow of electromagnetic waves in complex honeycomb photonic lattices with local PT symmetries. Such PT structure is introduced via a judicious arrangement of gain and loss across the honeycomb lattice, characterized by a gain and loss parameter γ. We found a class of conical diffraction phenomena where the formed cone is brighter and travels along the lattice with a transverse speed proportional to √γ.

Original languageEnglish
Article number013818
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume85
Issue number1
DOIs
Publication statusPublished - Jan 17 2012
Externally publishedYes

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photonics
symmetry
travel
electromagnetic radiation
cones
diffraction

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Exceptional-point dynamics in photonic honeycomb lattices with PT symmetry. / Ramezani, Hamidreza; Kottos, Tsampikos; Kovanis, Vassilios; Christodoulides, Demetrios N.

In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 85, No. 1, 013818, 17.01.2012.

Research output: Contribution to journalArticle

Ramezani, Hamidreza ; Kottos, Tsampikos ; Kovanis, Vassilios ; Christodoulides, Demetrios N. / Exceptional-point dynamics in photonic honeycomb lattices with PT symmetry. In: Physical Review A - Atomic, Molecular, and Optical Physics. 2012 ; Vol. 85, No. 1.
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