Influence of injector doping density and electron confinement on the properties of GaAs/Al0.45Ga0.55As quantum cascade lasers

S. Höfling, D. Indjin, V. D. Jovanovié, A. Mirčetić, J. P. Reithmaier, Z. Forchel, A. Ikonić, N. Vukmirović, P. Harrison, V. Milanović

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)

Abstract

We report on a comparative study of GaAs/Al0.45Ga 0.55As mid-infrared quantum cascade lasers. Devices differ in the mechanisms for depopulating the lower laser level. The depopulation mechanisms rely on longitudinal optical (LO) phonon emission into a single subband, into two subbands or into a set of subbands forming a miniband. The influence of injector doping density and electron confinement on device characteristics is explored experimentally and theoretically. The mechanisms limiting high temperature operation and the dynamic range are investigated.

Original languageEnglish
Pages (from-to)411-414
Number of pages4
JournalPhysica Status Solidi C: Conferences
Volume3
Issue number3
Early online date21 Feb 2006
DOIs
Publication statusPublished - 1 Mar 2006
Externally publishedYes
Event32nd International Symposium on Compound Semiconductors - Rust, Germany
Duration: 18 Sep 200522 Sep 2005
Conference number: 32

Fingerprint

Dive into the research topics of 'Influence of injector doping density and electron confinement on the properties of GaAs/Al0.45Ga0.55As quantum cascade lasers'. Together they form a unique fingerprint.

Cite this