Investigation of various optical transitions in GaAs/Al0.3Ga0.7As double quantum ring grown by droplet epitaxy

2016 ◽  
Vol 10 (9) ◽  
pp. 696-702 ◽  
Author(s):  
Jong Su Kim
Keyword(s):  
Droplet Epitaxy ◽  
Double Quantum ◽  
Quantum Ring ◽  
Optical Transitions

Optical transitions of Al 0.35 Ga 0.65 As/GaAs asymmetric double quantum wells grown on GaAs( n 11)A ( n ≤4) substrates

1999 ◽  
Vol 30 (4-5) ◽  
pp. 433-437 ◽  
Author(s):  
J.M Feng ◽  
M Tateuchi ◽  
K Asai ◽  
M Uwani ◽  
P.O Vaccaro ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Double Quantum ◽  
Optical Transitions ◽  
Asymmetric Double Quantum Wells

Photon antibunching in double quantum ring structures

2009 ◽  
Vol 79 (8) ◽  
Author(s):  
M. Abbarchi ◽  
C. A. Mastrandrea ◽  
A. Vinattieri ◽  
S. Sanguinetti ◽  
T. Mano ◽  
...  
Keyword(s):  
Double Quantum ◽  
Quantum Ring ◽  
Ring Structures ◽  
Photon Antibunching

EFFECT OF DONOR IMPURITY ON AHARONOV–BOHM OSCILLATIONS IN A DOUBLE QUANTUM RING WITH GAUSSIAN CONFINEMENT

2018 ◽  
Vol 52 (3 (247)) ◽  
pp. 205-212
Author(s):  
V.N. Mughnetsyan
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Electronic States ◽  
Quantum States ◽  
Outer Ring ◽  
Effective Control ◽  
Double Quantum ◽  
Quantum Ring ◽  
Donor Impurity ◽  
Aharonov Bohm

In this paper the effect of donor impurity on the Aharonov–Bohm oscillations of the electronic states in a double quantum ring with Gaussian confinement has been studied. Three different impurity positions: namely in the inner ring, in the outer ring and in the barrier between the rings, have been considered. It is shown that the energies of the two lowest states are almost constant, while for the higher levels the Aharonov–Bohm oscillations are observed. The obtained results indicate on the possibility of the effective control of the quantum states by means of donor impurity and external magnetic field.

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