Laser action in electrically driven quantum dot matrix

✍ Scribed by Krasnyj, J. ;Chuchmała, A. ;Jacak, W. ;Tytus, M. ;Donderowicz, W.

• Book ID: 105364316
• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 753 KB
• Volume: 204
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/pssa.200675356

✦ Synopsis

Abstract

A lasing system based on electrically driven quantum dot matrix is proposed, where population inversion of the dot matrix is obtained by rapid (nonadiabatic) switching on of in‐plane electric field as a pumping force. Numerical analysis of electron–photon system kinetics is performed for various electric fields and temperatures. For parabolic type of confinement in QDs, a convenient amplification of contribution from several levels is indicated. The relevant analysis utilises an exact solution of Cauchy problem for an infinite chain of linear differential equations. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)