Modes analysis in random structures varying the disorder magnitude

Carlo Molardi, Houkun Liang, Xia Yu, Ying Zhang, Annamaria Cucinotta, Stefano Selleri

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Modal properties of disordered optical structures, including a 1D-like multilayer structure and a 2D planar slab, have been numerically simulated in the Mid-IR region. The amount of scattering and the disorder level have been varied. A Finite Element Method solver has been used to show the modal properties of these structures, highlighting the correlation between the spectral behavior and the amount of disorder. The quality factor has also been investigated. A statistical parameter, based on the definition of photons travel distance, has been proposed to give a measure of the disorder according to the modal properties. With the help of a Monte Carlo based software this parameter has been investigated to verify its suitability.

Original languageEnglish
Title of host publicationPhysics and Simulation of Optoelectronic Devices XXIII
EditorsBernd Witzigmann, Yasuhiko Arakawa, Fritz Henneberger, Marek Osinski
ISBN (Electronic)9781628414479
Publication statusPublished - Jan 1 2015
Externally publishedYes
Event23rd SPIE Conference on Physics and Simulation of Optoelectronic Devices - San Francisco, United States
Duration: Feb 9 2015Feb 12 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


Conference23rd SPIE Conference on Physics and Simulation of Optoelectronic Devices
CountryUnited States
CitySan Francisco


  • Disordered structures
  • Middle infrared
  • Quality factor
  • Random lasers

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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