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2014 | 125 | 2 | 245-247
Article title

Impurity-Related Nonlinear Optical Absorption in Delta-Doped Quantum Rings

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EN
Abstracts
EN
Using a variational procedure within the effective mass approximation, we have calculated the hydrogenic impurity binding energy as well as the impurity-related nonlinear optical absorption in a single quantum ring with axial n-type delta-doping. The delta-like potential along the z-direction is analytically modeled with a Hartree-like confining profile fitted to a one-dimensional Thomas-Fermi-based potential in the local density approximation. Both on-center and on-edge impurity positions are considered and the energies of the impurity states are examined as functions of the vertical size of the ring. It is found that the effect of changes in the geometry of the quantum ring leads to a shifting of the resonant peaks of the intra-band optical spectrum.
Keywords
EN
Year
Volume
125
Issue
2
Pages
245-247
Physical description
Dates
published
2014-02
References
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv125n2025kz
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