Dissipative dynamics in coupled quantum dots: control of tunneling and electromagnetically induced transparency

2010 ◽  
Author(s):  
H. S. Borges ◽  
L. Sanz ◽  
A. M. Alcalde ◽  
Marília Caldas ◽  
Nelson Studart
Keyword(s):  
Quantum Dots ◽  
Electromagnetically Induced Transparency ◽  
Coupled Quantum Dots ◽  
Dissipative Dynamics ◽  
Induced Transparency

Electromagnetically induced transparency-like exciton nonlinear absorption in quantum dots

2004 ◽  
Author(s):  
Hideki Gotoh ◽  
Hidehiko Kamada ◽  
Tadashi Saitoh ◽  
Hiroaki Ando ◽  
Jiro Temmyo
Keyword(s):  
Quantum Dots ◽  
Nonlinear Absorption ◽  
Electromagnetically Induced Transparency ◽  
Induced Transparency

Binding Energy And Absorption of Donor Impurity In Spherical GaAs/AlxGa1-x As Quantum Dots With Konwent Potential

2021 ◽  
Author(s):  
E. B. Al ◽  
E. Kasapoglu ◽  
H. Sari ◽  
I. Sökmen ◽  
C. A. Duque
Keyword(s):  
Quantum Dots ◽  
Binding Energy ◽  
Electromagnetically Induced Transparency ◽  
Shallow Donor ◽  
Donor Impurity ◽  
Eigenvalues And Eigenfunctions ◽  
Different Types ◽  
Matrix Expansion ◽  
Diagonalization Method ◽  
Induced Transparency

Abstract In this study, the electronic and optical properties of single or core/shell quantum dots, which are formed depending on the parameters in the selected Konwent potential, are investigated. Namely, the effects of the size and geometric shapes of quantum dots on the binding energy of the on-center donor impurity, the total absorption coefficient and refractive index which are including transitions between the some confined states, and the electromagnetically induced transparency between the lowest six confined states related to the donor impurity are investigated. We have used the diagonalization method by choosing a wave function based on the Bessel and Spherical Harmonics orthonormal function to find the eigenvalues and eigenfunctions of the electron confined within the quantum dots which have different types mentioned above. To calculate the optical absorption coefficients and electromagnetically induced transparency related to shallow-donor impurity, a two- and three-level approach in the density matrix expansion is used, respectively.

The effect of spherical metallic nanoparticles on electromagnetically induced transparency in spherical quantum dots

2016 ◽  
Vol 30 (25) ◽  
pp. 1650215 ◽  
Author(s):  
A. Asgharinejad ◽  
H. R. Askari
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Effective Mass ◽  
Metallic Nanoparticles ◽  
Schrodinger Equation ◽  
Electromagnetically Induced Transparency ◽  
Metallic Nanoparticle ◽  
Central Potential ◽  
Spherical Quantum Dot ◽  
Induced Transparency

In this paper, electromagnetically induced transparency (EIT) is investigated in a GaAs spherical quantum dot (SQD) with central potential in presence of spherical metallic nanoparticle (SMNP). Solving the Schrödinger equation in effective mass, eigenfunctions and eigenvalues of SQD are obtained. By using the obtained eigenfunctions and eigenvalues, the susceptibility of SQD is found. In addition, dependence of EIT on radius of SQD and SMNP, distance between SMNP and SQD and Rabi and probe frequencies are investigated.

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