Vertical Coupling of Quantum Islands in the CdSe/ZnSe Submonolayer Superlattices

Abstract

This paper shows that decrease in the spacer layer thickness between subML sheets results in vertical correlation between QDs. Due to changing of the hole wavefunction symmetry edge PL of coupled QDs is weakly TM polarized while the emission of uncoupled dots is strongly TE polarized similar to QW case, Main absorption peak is not saturated when the gain peak develops at modemte excitation level while at very high excitation level saturation and suppression of the excitonic gain due to conversion of excitons to biexcitons and suppression of exciton induced waveguiding is observed.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1998
Accession Number
ADP012762

Entities

People

  • D. Bimberg
  • I. L. Krestnikov
  • M. Strabburg
  • N. N. Ledentsov
  • Zh I. Alferov

Organizations

  • Russian Academy of Sciences

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Crystal Lattices
  • Emission
  • Emission Spectra
  • Excitation
  • Geometry
  • Ground State
  • High Temperature
  • Linear Polarization
  • Materials
  • Optical Properties
  • Quantum Dots
  • Quantum Wells
  • Quantum Wires
  • Refractive Index
  • Spectra
  • Thickness

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene
  • Quantum Computing