Skip to main navigation Skip to search Skip to main content

Suppression of Auger recombination in long-wavelength quantum well W-structure lasers

  • P. C. Findlay
  • , I. V. Bradley
  • , J. G. Crowder
  • , C. R. Pidgeon
  • , B. N. Murdin
  • , M. J. Yang
  • , I. Vurgaftman
  • , J. R. Meyer

Research output: Contribution to journalArticlepeer-review

Abstract

Using picosecond pulses from a free-electron laser, we have carried out a pump-probe determination of Shockley-Read-Hall (SRH) and Auger free-carrier recombination lifetimes in two long-wave (6-7 µm) W-structure laser with InAs/Ga1_xInxSb/InAs/AlSb active regions. The SRH coefficient is nearly constant (A ? 4.0 × 108 s-1), while the Auger coefficient has an upper limit of C = 4.0 × 10-27 to 2.2 × 10-27 cm6/s in the temperature range 40-230 K. This represents an order of magnitude Auger suppression compared to type-I III-V semiconductors with the same energy gap.

Original languageEnglish
Pages (from-to)10297-10300
Number of pages4
JournalPhysical Review B: Condensed Matter and Materials Physics
Volume62
Issue number15
DOIs
Publication statusPublished - 15 Oct 2000

Fingerprint

Dive into the research topics of 'Suppression of Auger recombination in long-wavelength quantum well W-structure lasers'. Together they form a unique fingerprint.

Cite this