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Proceedings Paper

Coherent transport in QCLs: a new theoretical approach
Author(s): Ariel Gordon; Daniel Majer
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Paper Abstract

A new theoretical method for describing QCLs is presented. The method extends the familiar incoherent rate equations to include coherence. Smooth output power and voltage curves as function of current are obtained at very modest computational effort. Coherence is shown to play an important role in QCLs. The method is derived by imposing the following requirements on the equations of motion of the density matrix: 1. Expectation values should be independent of the choice of basis; 2. The density matrix should be positive definite; 3. The model should reduce to existing rate-equation models when coherences are omitted.

Paper Details

Date Published: 12 February 2010
PDF: 8 pages
Proc. SPIE 7616, Novel In-Plane Semiconductor Lasers IX, 761614 (12 February 2010); doi: 10.1117/12.841264
Show Author Affiliations
Ariel Gordon, Optigo Systems Ltd. (Israel)
Daniel Majer, Optigo Systems Ltd. (Israel)

Published in SPIE Proceedings Vol. 7616:
Novel In-Plane Semiconductor Lasers IX
Alexey A. Belyanin; Peter M. Smowton, Editor(s)

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