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Proceedings Paper

Mid-infrared properties of quantum dot lasers
Author(s): Marius Grundmann; A. Weber; K Goede; F. Heinrichsdorff; Dieter Bimberg; Victor M. Ustinov; Alexey E. Zhukov; Nikolai N. Ledentsov; Petr S. Kop'ev; Zhores I. Alferov
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Paper Abstract

Inter-sublevel transitions in InGaAs/AlGaAs quantum dots (QDs) in the mid-infrared (MIR) wavelength range are investigated by means of absorption and optically and electrically pumped emission spectroscopy. Charging dependent energy shifts of inter-sublevel transitions observed in calorimetric absorption spectra are attributed to few-particle effects in the QDs. MIR emission from near-infrared QD lasers is observed in the MIR lasing mode below threshold, which is confirmed by a theoretical modelling of such a bipolar lasing device. In contrast, spontaneous MIR emission is recorded for optically pumped Qds.

Paper Details

Date Published: 30 October 2001
PDF: 14 pages
Proc. SPIE 4598, Photonics Technology in the 21st Century, (30 October 2001); doi: 10.1117/12.447117
Show Author Affiliations
Marius Grundmann, Univ. Leipzig (Germany)
A. Weber, Univ. Leipzig (Germany)
K Goede, Univ. Leipzig (Germany)
F. Heinrichsdorff, Technische Univ. Berlin (Germany)
Dieter Bimberg, Technische Univ. Berlin (Germany)
Victor M. Ustinov, A.F. Ioffe Physical-Technical Institute (Russia)
Alexey E. Zhukov, A.F. Ioffe Physical-Technical Institute (Russia)
Nikolai N. Ledentsov, Technische Univ. Berlin and A.F. Ioffe Physico-Technical Institute (Germany)
Petr S. Kop'ev, A.F. Ioffe Physical-Technical Institute (Russia)
Zhores I. Alferov, A.F. Ioffe Physical-Technical Institute (Russia)


Published in SPIE Proceedings Vol. 4598:
Photonics Technology in the 21st Century

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