Exceptional-point Dynamics in Photonic Honeycomb Lattices with PT Symmetry

Abstract

Conical refraction phenomena, i.e., the spreading into a hollow cone of an unpolarized light beam entering a biaxial crystal along its optic axis, are fundamental in classical optics and in mathematical physics [1 4]. Originally predicted by Hamilton in 1837 [3] and experimentally observed by Lloyd [4], these phenomena have been intensively studied in recent years by a large community of theorists and experimentalists [1 8]. The physical origin of the phenomenon is associated with the existence of the legendary diabolical points, which emerge along the axis of intersection of the two shells associated with the wave surface. Around a diabolical point the energy dispersion relation is linear while the direction of the group velocity is not uniquely defined.

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Document Details

Document Type
Technical Report
Publication Date
Jan 17, 2012
Accession Number
ADA564096

Entities

People

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

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Band Structures
  • Differential Equations
  • Diffraction
  • Dispersion Relations
  • Dynamics
  • Eigenvalues
  • Eigenvectors
  • Energy Bands
  • Equations
  • Group Velocity
  • Hilbert Space
  • Phase Transformations
  • Physics
  • Refraction
  • Refractive Index
  • Symmetry
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Graph Algorithms and Convex Optimization.
  • Optical Physics and Photonics.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.