Microscopic theory of gain and spontaneous emission in GaInNAs laser material

Research output: Contribution to journalArticle

84 Citations (Scopus)

Abstract

A fully microscopic model is used to calculate absorption/gain and spontaneous emission for GaInNAs quantum-well laser gain media. It is demonstrated how this approach can be used to derive the optical properties for the regime of semiconductor laser operation from low density photo luminescence spectra which can be obtained from simple experiments. Numerical results are presented showing that increased well depth leads to strongly increased differential gains and gain amplitudes and pronounced shifts of the gain maximum with increasing density. On the basis of a quantum Blotzmann model for the incoherent carrier dynamics it is shown, that high carrier confinement can lead to unusually long carrier capture times. Furthermore, temperature dependent bandstructure parameters for GaInNAs for the applied 10-band k·p-model are presented that have been derived from comparison to recent experimental data.

Original languageEnglish (US)
Pages (from-to)513-521
Number of pages9
JournalSolid-State Electronics
Volume47
Issue number3
DOIs
StatePublished - Mar 2003

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laser materials
Spontaneous emission
spontaneous emission
Lasers
Quantum well lasers
Semiconductor lasers
Photoluminescence
Optical properties
quantum well lasers
semiconductor lasers
photoluminescence
optical properties
Experiments
shift
Temperature
temperature

Keywords

  • Absorption
  • Carrier capture times
  • Gain
  • GaInNAs
  • Photo luminescence
  • Quantum-well lasers

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Microscopic theory of gain and spontaneous emission in GaInNAs laser material. / Hader, Jorg; Koch, Stephan W; Moloney, Jerome V.

In: Solid-State Electronics, Vol. 47, No. 3, 03.2003, p. 513-521.

Research output: Contribution to journalArticle

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