Single Mode InAs/InP Quantum-dot Microcavity Lasers

2015 ◽  
Author(s):  
Jin-Long Xiao ◽  
Yue-De Yang ◽  
Shuai Luo ◽  
Hai-Ming Ji ◽  
Tao Yang ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Single Mode ◽  
Microcavity Lasers

Degradation-robust single mode continuous wave operation of 1.46μm metamorphic quantum dot lasers on GaAs substrate

2006 ◽  
Vol 89 (4) ◽  
pp. 041113 ◽  
Author(s):  
T. Kettler ◽  
L. Ya. Karachinsky ◽  
N. N. Ledentsov ◽  
V. A. Shchukin ◽  
G. Fiol ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Gaas Substrate ◽  
Continuous Wave ◽  
Single Mode ◽  
Quantum Dot Lasers ◽  
Continuous Wave Operation

KONDO EFFECT AND SPIN-CHARGE SEPARATION IN QUANTUM DOTS

2001 ◽  
Vol 15 (10n11) ◽  
pp. 1426-1442
Author(s):  
L. I. GLAZMAN ◽  
F. W. J. HEKKING ◽  
A. I. LARKIN
Keyword(s):  
Quantum Dot ◽  
Charge Separation ◽  
Coulomb Blockade ◽  
Kondo Effect ◽  
Broad Band ◽  
Single Mode ◽  
Kondo Temperature ◽  
Average Charge ◽  
Opposite Case ◽  
Anderson Impurity Model

The Kondo effect in a quantum dot is discussed. In the standard Coulomb blockade setting, tunneling between the dot and the leads is weak, the number of electrons in the dot is well-defined and discrete; the Kondo effect may be considered in the framework of the conventional one-level Anderson impurity model. It turns out however, that the Kondo temperature TK in the case of weak tunneling is extremely low. In the opposite case of almost reflectionless single-mode junctions connecting the dot to the leads, the average charge of the dot is not discrete. Surprisingly, its spin may remain quantized: s=1/2 or s=0, depending (periodically) on the gate voltage. Such a "spin-charge separation" occurs because, unlike an Anderson impurity, a quantum dot carries a broad-band, dense spectrum of discrete levels. In the doublet state, the Kondo effect develops with a significantly enhanced TK. Like in the weak-tunneling regime, the enhanced TK exhibits strong mesoscopic fluctuations. The statistics of the fluctuations is universal, and related to the Porter-Thomas statistics of the wave function fluctuations.

Optically Injected Single-Mode Quantum Dot Lasers

2012 ◽  
pp. 1-22 ◽  
Author(s):  
B. Kelleher ◽  
D. Goulding ◽  
S. P. Hegarty ◽  
G. Huyet ◽  
E. A. Viktorov ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Single Mode ◽  
Quantum Dot Lasers

Room Temperature CW 1.3 μm Single Mode Lasing of InAs Quantum Dot Micro-disk Lasers Grown on (001) Si

2016 ◽  
Author(s):  
Yating Wan ◽  
Qiang Li ◽  
Alan Y. Liu ◽  
Arthur C. Gossard ◽  
John E. Bowers ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Room Temperature ◽  
Single Mode ◽  
Inas Quantum Dot
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