Intersubband Absorption in the Conduction Band of Si/Si1−xGex Multiple Quantum Wells

1991 ◽  
Vol 220 ◽  
Author(s):  
H. Hertle ◽  
G. Schuberth ◽  
E. Gornik ◽  
G. Abscreiter ◽  
F. Schäffler
Keyword(s):  
Quantum Wells ◽  
Conduction Band ◽  
Absorption Lines ◽  
Multiple Quantum Wells ◽  
Multiple Quantum ◽  
Intersubband Absorption ◽  
Self Consistent ◽  
Experimental Values ◽  
Good Agreement ◽  
Waveguide Geometry

ABSTRACTThe intersubband absorption of electrons in modulation doped Si/Si1−xGex multiple quantum wells has been observed [1]. Various samples with different well widths and carrier densities have been studied. Narrow absorption lines are observed in waveguide geometry. Self consistent subband calculations are in good agreement with the experimental values.

Terahertz intersubband absorption and conduction band alignment inn-type Si/SiGe multiple quantum wells

2009 ◽  
Vol 79 (8) ◽  
Author(s):  
G. Ciasca ◽  
M. De Seta ◽  
G. Capellini ◽  
F. Evangelisti ◽  
M. Ortolani ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Conduction Band ◽  
Band Alignment ◽  
Multiple Quantum Wells ◽  
Multiple Quantum ◽  
Intersubband Absorption

Intersubband Transitions In Ingaas/Inalas Multiple Quantum Wells Grown On Inp Substrate

2001 ◽  
Vol 692 ◽  
Author(s):  
Qiaoying Zhou ◽  
M. O. Manasreh ◽  
B. D. Weaver ◽  
M. Missous
Keyword(s):  
Quantum Wells ◽  
Conduction Band ◽  
Multiple Quantum Wells ◽  
Multiple Quantum ◽  
Interband Transitions ◽  
Intersubband Transitions ◽  
Quantum Well Structures ◽  
Inp Substrate ◽  
Inp Substrates ◽  
Lattice Matched

AbstractIntersubband transitions in In0.52Ga0.48As/In0.52Al0.48As multiple quantum wells grown on lattice matched InP substrates were investigated using Fourier transform infrared (FTIR) absorption and photoluminescence (FTPL) techniques. The well width was tailored to produce excited states resonant in the conduction band, at the edge of the conduction band, and confined in the quantum wells. Interband transitions were also probed using FTPL and optical absorption techniques. The FTPL spectra show that three interband transitions exist in the quantum well structures with well width larger than 30 Å. The intersubband transitions in this class of quantum wells seem to withstand proton irradiation with doses higher than those used to deplete the intersubband transitions in the GaAs/AlGaAs multiple quantum wells.

Infrared intersubband absorption in GaAs/AlAs multiple quantum wells

1989 ◽  
Vol 54 (21) ◽  
pp. 2145-2147 ◽  
Author(s):  
B. C. Covington ◽  
C. C. Lee ◽  
B. H. Hu ◽  
H. F. Taylor ◽  
D. C. Streit
Keyword(s):  
Quantum Wells ◽  
Multiple Quantum Wells ◽  
Multiple Quantum ◽  
Intersubband Absorption

Temperature dependence of mid-infrared intersubband absorption in AlGaN/GaN multiple quantum wells

2016 ◽  
Vol 108 (5) ◽  
pp. 052102 ◽  
Author(s):  
Teruhisa Kotani ◽  
Munetaka Arita ◽  
Katsuyuki Hoshino ◽  
Yasuhiko Arakawa
Keyword(s):  
Quantum Wells ◽  
Temperature Dependence ◽  
Multiple Quantum Wells ◽  
Multiple Quantum ◽  
Mid Infrared ◽  
Intersubband Absorption
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