Quantum Cascade Electroluminescence in the GaAs/AIGaAs Material System

Author(s):  
Peter Kruck ◽  
Manfred Helm ◽  
Gottfried Strasser ◽  
Lubos Hvozdara ◽  
Erich Gornik

2015 ◽  
Vol 21 (6) ◽  
pp. 85-96 ◽  
Author(s):  
Alexei N. Baranov ◽  
Roland Teissier


Author(s):  
Г.Э. Цырлин ◽  
Р.Р. Резник ◽  
А.Е. Жуков ◽  
Р.А. Хабибуллин ◽  
К.В. Маремьянин ◽  
...  

The data on the synthesis and characterization of structures for a quantum cascade terahertz laser in an AlGaAs/GaAs material system on GaAs substrates using the molecular beam epitaxy method are presented. The features necessary for the implementation of such structures are considered. It was shown that for this geometry almost single-mode lasing is observed at a frequency of ∼ 3 THz up to a temperature of ∼ 60 K.



2015 ◽  
Vol 107 (13) ◽  
pp. 132104 ◽  
Author(s):  
Alex Y. Song ◽  
Rajaram Bhat ◽  
Andrew A. Allerman ◽  
Jie Wang ◽  
Tzu-Yung Huang ◽  
...  


2009 ◽  
Vol 45 (20) ◽  
pp. 1031 ◽  
Author(s):  
M. Nobile ◽  
P. Klang ◽  
E. Mujagić ◽  
H. Detz ◽  
A.M. Andrews ◽  
...  


2021 ◽  
Vol 2086 (1) ◽  
pp. 012086
Author(s):  
R A Khabibullin ◽  
D S Ponomarev ◽  
D V Ushakov ◽  
A A Afonenko

Abstract Over the past two decades, the operation temperature of terahertz quantum cascade lasers (THz QCLs) has continuously increased from cryogenic level to the current record value of 250 K (about -23°C) [1]. Here we review the state-of-the-art and future prospects of high-temperature THz QCL designs with two-quantum wells in active module based on conventional heterojunction GaAs/AlGaAs and alternative material system HgCdTe. We have analyzed the temperature dependence of the peak gain and predicted the maximum operation temperatures of the given designs.



2009 ◽  
Vol 1195 ◽  
Author(s):  
Michele Nobile ◽  
Gottfried Strasser ◽  
Hermann Detz ◽  
Elvis Mujagic ◽  
Aaron Andrews ◽  
...  

AbstractAn experimental study on mid-infrared intersubband absorption in InGaAs/GaAsSb multiple quantum wells grown lattice-matched to InP substrates by molecular beam epitaxy is presented. Intersubband absorption in a broad wavelength region (5.8 - 11.6 μm) is observed in multiple quantum well samples with well widths ranging between 4.5 and 12 nm. A conduction band offset at the InGaAs/GaAsSb heterointerface of 360 meV gives an excellent agreement between the theoretically calculated ISB transition energies and the Fourier-transform infrared spectroscopy measurements over the whole range of well widths under investigation. Two kinds of intersubband devices based on the InGaAs/GaAsSb material system are presented: a quantum well infrared photodetector operating at a wavelength of 5.6μm and an aluminum-free quantum cascade laser. The presented quantum cascade laser emits at a wavelength of 11.3 μm, with a threshold current density of 1.7 kA/cm2 at 78 K.



Author(s):  
C. Deutsch ◽  
A. Benz ◽  
H. Detz ◽  
M. Nobile ◽  
A. M. Andrews ◽  
...  


2019 ◽  
Vol 34 (7) ◽  
pp. 075018
Author(s):  
Jinfeng Li ◽  
Ting Wan ◽  
Changshui Chen


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