Separation of Radiation and Absorption Losses in Two-Dimensional Photonic Crystal Single Defect Cavities

Abstract

We have characterized the optical modes present in a two-dimensional photonic crystal single defect cavity fabricated in an InP/In0.53Ga0.47As/InP double heterostructure thin film on a glass slide. The cavity resonance was tuned to different frequencies in the 1.55 mm spectral region. Radiation losses and material absorption influence the measured value of cavity quality factor Q. We separated these two loss mechanisms by performing a curve fit of the loss rate 1/Q versus the wavelength-dependent absorption coefficient of In0.53Ga0.47As. By extrapolating this curve to zero absorption, the radiation loss rate 1/Qrad is obtained.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2005
Accession Number
ADA471616

Entities

People

  • E. Yablonovitch
  • I. Alvarado-rodriguez

Organizations

  • University of California, San Diego

Tags

DTIC Thesaurus Topics

  • Absorption
  • Absorption Coefficients
  • Chemical Vapor Deposition
  • Coefficients
  • Crystal Lattice Vibrations
  • Crystal Lattices
  • Crystals
  • Electrical Engineering
  • Fabrication
  • Films
  • Materials
  • Optomechanics
  • Photonic Crystals
  • Radiation
  • Semiconductors
  • Thin Films
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Semiconductor Device Technology
  • Spectroscopy.