Characteristic of spontaneous emission from CdSe/ZnS core-shell quantum dots near the surface of self-assembled three-dimensional photonic crystals

2010 ◽  
Vol 57 (14-15) ◽  
pp. 1300-1304 ◽  
Author(s):  
G.Q. Liu ◽  
Y.B. Liao ◽  
X.Y. Tao
Keyword(s):  
Quantum Dots ◽  
Photonic Crystals ◽  
Spontaneous Emission ◽  
Three Dimensional ◽  
Core Shell ◽  
Self Assembled

Modified spontaneous emission from CdSe/ZnS core–shell quantum dots in plasmonic–photonic crystals

2013 ◽  
Vol 93 ◽  
pp. 42-44 ◽  
Author(s):  
G.Q. Liu ◽  
Z.Q. Liu ◽  
K. Huang ◽  
Y.H. Chen ◽  
L. Li ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Photonic Crystals ◽  
Spontaneous Emission ◽  
Core Shell

Mid-Infrared Emission in InAs/GaAs Self-Assembled Quantum Dots

1999 ◽  
Vol 571 ◽  
Author(s):  
P. Boucaud ◽  
S. Sauvage ◽  
T. Brunhes ◽  
F. Glotin ◽  
R. Prazeres ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Excited States ◽  
Spontaneous Emission ◽  
Optical Pumping ◽  
Three Dimensional ◽  
Infrared Emission ◽  
Nonlinear Susceptibility ◽  
Mid Infrared ◽  
Third Harmonic ◽  
Self Assembled

ABSTRACTWe have investigated the emission properties of InAs/GaAs self-assembled quantum dots in the mid-infrared. The emission relies on the intraband transitions in the valence band of the quantum dots. We first show that third-harmonic generation can be observed. The frequency tripling efficiency is enhanced by the resonances between the pump excitation and the quantum dot intraband transitions. A giant third-order nonlinear susceptibility is measured for one dot plane. The narrow spectral dependence of the nonlinear susceptibility is well explained by simulations which account for the three-dimensional confinement potential. We secondly show that the mid-infrared spontaneous emission between hole confined states can be observed under an interband optical pumping. The spontaneous emission involves transitions between either the ground and excited states or between excited states. These measurements demonstrate the potentiality of self-assembled quantum dots for mid-infrared emission.

scholarly journals Exciton footprint of self-assembled AlGaAs quantum dots in core-shell nanowires

2014 ◽  
Vol 90 (7) ◽  
Author(s):  
Yannik Fontana ◽  
Pierre Corfdir ◽  
Barbara Van Hattem ◽  
Eleonora Russo-Averchi ◽  
Martin Heiss ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Core Shell ◽  
Self Assembled ◽  
Shell Nanowires

Designing spatial correlation of quantum dots: towards self-assembled three-dimensional structures

2007 ◽  
Vol 19 (1) ◽  
pp. 015601 ◽  
Author(s):  
J R R Bortoleto ◽  
J G Zelcovit ◽  
H R Gutiérrez ◽  
J Bettini ◽  
M A Cotta
Keyword(s):  
Quantum Dots ◽  
Spatial Correlation ◽  
Three Dimensional ◽  
Self Assembled
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