Effect of nanostructure size and dielectric environment on linear and nonlinear dielectric functions in GaN/AlxGa1-xN core shell quantum dots

2021 ◽  
Vol 274 ◽  
pp. 115463
Author(s):  
A. Naifar ◽  
N. Zeiri ◽  
N. Yahyaoui ◽  
A.Jbeli ◽  
S. Abdi-Ben Nasrallah ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Core Shell ◽  
Nonlinear Dielectric ◽  
Linear And Nonlinear ◽  
Dielectric Environment

Linear and nonlinear optical properties of a single dopant in strained AlAs/GaAs spherical core/shell quantum dots

2017 ◽  
Vol 383 ◽  
pp. 231-237 ◽  
Author(s):  
M. El Haouari ◽  
A. Talbi ◽  
E. Feddi ◽  
H. El Ghazi ◽  
A. Oukerroum ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Core Shell ◽  
Spherical Core ◽  
Linear And Nonlinear

scholarly journals Linear and Nonlinear Optical Absorption of CdSe/CdS Core/Shell Quantum Dots in the Presence of Donor Impurity

Atoms ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 75
Author(s):  
Grigor A. Mantashian ◽  
Nare A. Zaqaryan ◽  
Paytsar A. Mantashyan ◽  
Hayk A. Sarkisyan ◽  
Sotirios Baskoutas ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Nonlinear Optical ◽  
Incident Light ◽  
Refractive Index Change ◽  
Core Shell ◽  
The Finite Element Method ◽  
Third Order ◽  
Mass Approximation ◽  
Nonlinear Optical Absorption ◽  
Linear And Nonlinear

Linear and nonlinear optical properties in colloidal CdSe/CdS core/shell quantum dots with different sizes have been theoretically investigated in the framework of effective mass approximation. The electron states in colloidal CdSe/CdS core/shell quantum dots have been calculated using the finite element method. The intraband linear and nonlinear absorption spectra have been calculated for colloidal CdSe/CdS core/shell quantum dots with different sizes. In addition, the dependences of the linear and nonlinear refractive index change on the incident light energy have been calculated. In the last section of the paper the second- and third-order harmonic generation spectra have been presented.

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