DocumentCode
1269015
Title
Quantum-dot cascade laser: proposal for an ultralow-threshold semiconductor laser
Author
Wingreen, Ned S. ; Stafford, Charles A.
Author_Institution
NEC Res. Inst., Princeton, NJ, USA
Volume
33
Issue
7
fYear
1997
fDate
7/1/1997 12:00:00 AM
Firstpage
1170
Lastpage
1173
Abstract
We propose a quantum-dot version of the quantum-well cascade laser of Faist et al., see Science, vol. 264, p. 553, 1994. The elimination of single phonon decays by the three-dimensional confinement implies a several order-of-magnitude reduction in the threshold current. The requirements on dot size (10-20 nm) and on dot density and uniformity [one coupled pair of dots per (200 nm3) with 5% nonuniformity] are close to current technology
Keywords
laser theory; quantum well lasers; semiconductor device models; coupled pair; dot density; dot size; nonuniformity; quantum-dot cascade laser; quantum-dot version; quantum-well cascade laser; several order-of-magnitude reduction; single phonon decays; three-dimensional confinement; threshold current; ultralow-threshold semiconductor laser; uniformity; Electrons; Laser excitation; Phonons; Proposals; Quantum cascade lasers; Quantum dot lasers; Quantum dots; Quantum well lasers; Semiconductor lasers; Threshold current;
fLanguage
English
Journal_Title
Quantum Electronics, IEEE Journal of
Publisher
ieee
ISSN
0018-9197
Type
jour
DOI
10.1109/3.594880
Filename
594880
Link To Document