Tuning of mid-infrared emission of ternary PbSrTe/CdTe quantum dots

2012 ◽  
Vol 100 (11) ◽  
pp. 113112 ◽  
Author(s):  
A. Hochreiner ◽  
S. Kriechbaumer ◽  
T. Schwarzl ◽  
H. Groiss ◽  
M. Hassan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Infrared Emission ◽  
Cdte Quantum Dots ◽  
Mid Infrared

Multiple wavelength anisotropically polarized mid-infrared emission from InAs quantum dots

2006 ◽  
Vol 88 (19) ◽  
pp. 191118 ◽  
Author(s):  
D. Wasserman ◽  
C. Gmachl ◽  
S. A. Lyon ◽  
E. A. Shaner
Keyword(s):  
Quantum Dots ◽  
Infrared Emission ◽  
Mid Infrared ◽  
Inas Quantum Dots ◽  
Multiple Wavelength

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.

Fluorescenсе Properties of Complexes of Coumarin Derivatives/CdTe Quantum Dots under Interaction with Ammonia Molecules in Microconcentrations

2016 ◽  
Vol 8 (4(1)) ◽  
pp. 04032-1-04032-5
Author(s):  
V. P. Mitsai ◽  
◽  
A. G. Misyura ◽  
S. V. Kryvets ◽  
Ya. P. Lazorenko ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Cdte Quantum Dots ◽  
Coumarin Derivatives

Broadband mid-infrared emission in Dy3+/Er3+ co-doped tellurite glass

2021 ◽  
Vol 236 ◽  
pp. 118078
Author(s):  
Yu Zhang ◽  
Lizhang Xia ◽  
Xinjie Shen ◽  
Jun Li ◽  
Gaobo Yang ◽  
...  
Keyword(s):  
Tellurite Glass ◽  
Infrared Emission ◽  
Mid Infrared ◽  
Co Doped

Electrostatic repulsion strategy for highly selective and sensitive “switch–on” fluorescence sensor of ascorbic acid based on the cysteamine-coated CdTe quantum dots and cerium (IV)

2021 ◽  
Author(s):  
Yifei Guo ◽  
Jingjing Du ◽  
Jianjun Li ◽  
Ran Yang ◽  
Peter B. de Harrington ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Ascorbic Acid ◽  
Hydrothermal Method ◽  
Cadmium Chloride ◽  
Fluorescence Sensor ◽  
Cdte Quantum Dots ◽  
Electrostatic Repulsion ◽  
Functional Monomer ◽  
Simple Hydrothermal Method ◽  
Cdte Qds

In this work, cysteamine-coated CdTe quantum dots (CA-CdTe QDs) were synthesized by a simple hydrothermal method employing cadmium chloride as the cadmium source and cysteamine hydrochloride as the functional monomer....

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