The effect of the polarization charges on the optical properties of a spherical quantum dot with an off-central hydrogenic impurity

2011 ◽  
Vol 44 (2) ◽  
pp. 476-482 ◽  
Author(s):  
V.I. Boichuk ◽  
I.V. Bilynskyi ◽  
R.Ya. Leshko ◽  
L.M. Turyanska
Keyword(s):  
Optical Properties ◽  
Quantum Dot ◽  
Hydrogenic Impurity ◽  
Spherical Quantum Dot

scholarly journals Finite difference calculation of optical properties of hydrogenic impurity in spherical quantum dot with parabolic confinement

2018 ◽  
Vol 64 (1) ◽  
pp. 7 ◽  
Author(s):  
Kriti Batra ◽  
Vinod Prasad
Keyword(s):  
Optical Properties ◽  
Finite Difference ◽  
Quantum Dot ◽  
Oscillator Strength ◽  
Binding Energies ◽  
Matrix Elements ◽  
Hydrogenic Impurity ◽  
Spherical Quantum Dot ◽  
Parabolic Potential ◽  
Parabolic Confinement

 The optical properties of an electron with an impurity in a spherical quantum dot under parabolic confinement are studied and energies, wave functions, binding energies, radial matrix elements, polarizability, susceptibility and oscillator strength have been evaluated. The numerical method used is the finite difference method in the framework of the effective mass approximation. The variation of the energy levels and radial matrix elements have been studied as function of the radius of the GaAs sphere and also as function of the frequency of the harmonic oscillator potential or parabolic potential. In addition we have studied how polarizability, susceptibility and the oscillator strength vary as a function of dot radius and at different parabolic potential frequencies.

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