Spontaneous long-wavelength interlevel emission in quantum-dot laser structures

被引：0
|
作者：
L. E. Vorob’ev
D. A. Firsov
V. A. Shalygin
V. N. Tulupenko
Yu. M. Shernyakov
A. Yu. Egorov
A. E. Zhukov
A. R. Kovsh
P. S. Kop’ev
I. V. Kochnev
N. N. Ledentsov
M. V. Maksimov
V. M. Ustinov
Zh. I. Alferov
机构：
[1] St. Petersburg State Technical University,A. F. Ioffe Physicotechnical Institute
[2] Donbass State Mechanical Engineering Academy,undefined
[3] Russian Academy of Sciences,undefined
来源：
Technical Physics Letters | 1998年 / 24卷
关键词：
Spectral Range; Spontaneous Emission; Interband Transition; Laser Structure; Interband Emission;
D O I：
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学科分类号：
摘要：
Spontaneous emission has been observed for the first time as a result of interband transitions of holes and electrons between size-quantization levels in vertically coupled quantum dots and also as a result of transitions from quantum-well states to a quantum-dot level. The spectral range of the emission was in the far-infrared (λ≅10–20 μm). The long-wavelength emission was only recorded simultaneously with short-wavelength interband emission (λ≅0.94 μm) in InGaAs/AlGaAs quantum-dot laser structures at above-threshold currents.
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页码：590 / 592
页数：2
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