Photoluminescence study of suspended MQW structures for laser refrigeration purposes

Iman Hassani Nia, Hooman Mohseni

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

1 Scopus citations

Abstract

Suspended semiconductor structures with high thermal isolation provide high temperature sensitivity of the dissipated thermal power. Therefore they can be used to obtain essential information about the underlying mechanisms of anti-Stokes laser cooling. Here, we experimentally investigate the electron-hole pair recombination processes in suspended and non-suspended MQW structures from 77 K up to room temperature. Excitation dependent and time-resolved micro-photoluminescence measurements have been used to conduct this study. To include the effects of lateral carrier diffusion, we preformed finite-element time-resolved analysis of carrier recombination and diffusion and thermal transients. The potential of these structures for laser cooling purposes is discussed.

Original languageEnglish (US)
Title of host publicationLaser Refrigeration of Solids VIII
EditorsMansoor Sheik-Bahae, Richard I. Epstein, Denis V. Seletskiy
PublisherSPIE
Volume9380
ISBN (Electronic)9781628414707
DOIs
StatePublished - Jan 1 2015
EventLaser Refrigeration of Solids VIII - San Francisco, United States
Duration: Feb 11 2015Feb 12 2015

Other

OtherLaser Refrigeration of Solids VIII
CountryUnited States
CitySan Francisco
Period2/11/152/12/15

ASJC Scopus subject areas

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

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