Enhancement and Extraction of Spontaneous Emission from 2-d Thin Film Photonic Crystals

Abstract

The results of photoluminescence measurements on thin slab InGaAs/InP photonic crystals are presented, demonstrating a possibility of spontaneous emission engineering at room temperature using 2-d periodic thin film photonic crystals. The angle dependence of the PL spectral peaks is shown to track the photonic band dispersion. This revealed the band structure of the leaky conduction bands within the optical escape cone. Up to a 15-fold emission intensity enhancement was observed and explained in terms of a combination of Purcell enhancement, and Bragg extraction of high wave vector photon. Different design concepts for improving led performance were demonstrated.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 23, 2000
Accession Number
ADP013063

Entities

People

  • Misha Boroditsky
  • Raj Bhat
  • Roberto Coccioli
  • Rutger Vrijen
  • Thomas F. Krauss

Organizations

  • University of California, Los Angeles

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Band Gaps
  • Band Structures
  • Conduction Bands
  • Crystal Structure
  • Crystals
  • Efficiency
  • Electrical Engineering
  • Electron Beam Lithography
  • Emission
  • Energy Bands
  • Engineering
  • Photonic Crystals
  • Quantum Efficiency
  • Quantum Wells
  • Semiconductors
  • Thin Films
  • Two Dimensional

Fields of Study

  • Materials science
  • Physics

Readers

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