Exciton-Polariton Band Structure in Quantum-Dot Lattices

Abstract

We develop a theory of exciton polaritons in three-dimensional quantum dot lattices with the period comparable to the light wavelength. A system of the Maxwell equations and nonlocal material relation are used to derive the dispersion equation in a rather general and well-converging form. A possibility of analytical description of the dispersion is questioned and discussed. The photon band structure is calculated for a face-centered-cubic lattice with spherical dots of the radius exceeding the bulk-exciton Bohr radius. The dispersion along the Gamma - X and Gamma - L lines is characterized by a strong anticrossing between bare transverse photon and exciton branches and by remarkable overlapping band gaps. Approaching the U and W pointS the exciton-polariton branches converge and the gap becomes negligible.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1998
Accession Number
ADP012813

Entities

People

  • E.. L. Ivchenko
  • M. Willander
  • Yangyang Fu

Organizations

  • Russian Academy of Sciences

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Band Gaps
  • Band Structures
  • Brillouin Zones
  • Crystal Lattices
  • Cubic Lattices
  • Electromagnetic Fields
  • Energy Bands
  • Equations
  • Exciton Polaritons
  • Excitons
  • Frequency
  • Materials
  • Photons
  • Polaritons
  • Quantum Dots
  • Semiconductors
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Plasma Physics / Magnetohydrodynamics
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene
  • Quantum Computing