Oscillator Strength of Gaussian Double Quantum Well for Intersubband Transition

2017 ◽  
pp. 433-438
Author(s):  
Debasmita Sarkar ◽  
Arpan Deyasi
Keyword(s):  
Quantum Well ◽  
Oscillator Strength ◽  
Double Quantum ◽  
Intersubband Transition ◽  
Double Quantum Well

Intersubband transition in InGaAs/AlAsSb/InP coupled double quantum well structures optimised for communication wavelength operation

2000 ◽  
Vol 36 (23) ◽  
pp. 1972 ◽  
Author(s):  
A. Neogi ◽  
H. Yoshida ◽  
T. Mozume ◽  
N. Georgiev ◽  
T. Akiyama ◽  
...  
Keyword(s):  
Quantum Well ◽  
Double Quantum ◽  
Intersubband Transition ◽  
Quantum Well Structures ◽  
Double Quantum Well

Sign of the Piezoelectric Field in Asymmetric GaInN/AlGaN/GaN Single and Double Quantum Wells on SiC

1999 ◽  
Vol 595 ◽  
Author(s):  
Jin Seo Im ◽  
A. Hangleiter ◽  
J. Off ◽  
F. Scholz
Keyword(s):  
Quantum Well ◽  
Quantum Wells ◽  
Oscillator Strength ◽  
Double Quantum ◽  
Barrier Structure ◽  
Time Resolved ◽  
Double Quantum Well ◽  
First Case ◽  
Algan Barrier ◽  
Piezoelectric Field

AbstractWe study both GaInN/GaN/AlGaN quantum wells with an asymmetric barrier structure grown on SiC substrate and GaN/AlGaN asymmetric double quantum well (ADQW) structures. In the first case, a time-resolved study reveals an enhanced oscillator strength when the AlGaN barrier is on top of the GaInN quantum well. In comparison to our previous study of the same structure grown on sapphire, we find that the sign of the field is the same in both cases: the field points towards the substrate. In the case of ADQW, we observed not only intrawell transitions of both a 4 nm and a 2 nm QW separated by a 2.5 nm AlGaN barrier but also an interwell transition between the two QWs in the photoluminescence. The lifetimes and emission energies of the transitions can be well explained by the existence of the piezoelectric field built in the QWs.

Transport hysteresis in AlGaAs/GaAs double quantum well systems with InAs quantum dots

2007 ◽  
Vol 19 (50) ◽  
pp. 506207 ◽  
Author(s):  
E S Kannan ◽  
Gil-Ho Kim ◽  
I Farrer ◽  
D A Ritchie
Keyword(s):  
Quantum Dots ◽  
Quantum Well ◽  
Double Quantum ◽  
Inas Quantum Dots ◽  
Double Quantum Well
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