Duque, C. M. and Mora-Ramos, M. E. and Duque, C. A. (2011) Simultaneous effects of electron-hole correlation, hydrostatic pressure, and temperature on the third harmonic generation in parabolic GaAs quantum dots. Journal of Nanoparticle Research, 13 (11). pp. 6103-6112.
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Abstract
The combined effects of electron-hole correlation, hydrostatic pressure, and temperature on the third harmonic generation in disk-shaped parabolic GaAs quantum dots are studied under the density matrix formalism and the effective mass approximation. Two well-defined regimes are discussed: (1) the strong-confinement regime, where the Coulomb interaction between the electron and hole is neglected and (2) the weak-confinement regime where the parabolic confinement term is neglected and the system reaches the limit of a hydrogenic problem. The results show that the third harmonic-generation coefficient is strongly dependent on the localization of the electron-hole pair. Also, that by using external perturbations like hydrostatic pressure or by considering the temperature effects it is possible to induce a blue-shift and/or red-shift on the resonant peaks of the third harmonic generation coefficient.
| Item Type: | Article |
|---|---|
| ID Code: | 11527 |
| Deposited By: | Prof. Alexey Ivanov |
| Deposited On: | 05 Jan 2012 09:30 |
| Last Modified: | 05 Jan 2012 09:42 |
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