Circularly Polarized Emission from Colloidal Nanocrystal Quantum Dots Confined in Sculptured Thin Film Based Microcavities

Abstract

We report the simultaneous control of the polarization state and emission bandwidth of colloidal nanocrystal quantum dots by embedding them in chiral reflector-based microcavities. Significant improvements in directionality and color purity have been observed in the polarized light output arising from the enhanced coupling between the NQD-excitons and the confined electromagnetic field.

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Document Details

Document Type
Technical Report
Publication Date
May 06, 2007
Accession Number
ADA574768

Entities

People

  • Akhlesh Lakhtakia
  • Fan Zhang
  • Jian Xu
  • Michael Gerhold
  • Sean M. Pursel

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Bandwidth
  • Couplings
  • Crystal Structure
  • Electromagnetic Fields
  • Films
  • Materials
  • Materials Science
  • Mirrors
  • Nanocrystals
  • Optical Properties
  • Optics
  • Quantum Dots
  • Radiation
  • Reflectors
  • Semiconductors
  • Spatial Distribution
  • Thin Films

Fields of Study

  • Physics

Readers

  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Microelectronics
  • Quantum Computing