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

TitleSuppression of Auger recombination in long-wavelength quantum well W-structure lasers
Publication TypeJournal Article
Year of Publication2000
AuthorsP.C Findlay, J.PR Wells, I.V Bradley, J.G Crowder, C.R Pidgeon, B.N Murdin, M.J Yang, I. Vurgaftman, J.R Meyer
JournalPhysical Review B
Volume62
Number15
Pagination10297-10300
Date PublishedOct 15
ISBN Number1098-0121; 1550-235X
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 mum) W-structure laser with InAs/Ga1-xInxSb/InAs/AlSb active regions. The SRH coefficient is nearly constant (A approximate to4.0X10(8) s(-1)), while the Auger coefficient has an upper limit of C=4.0x10(-27) to 2.2X10(-27) cm(6)/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.

DOI10.1103/PhysRevB.62.10297
PID

7c614e9cad0c9cb12c1d17e8f276f861

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