Browsing by Author "Balkan, N"
Now showing items 1-5 of 5
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An alternative method for the exact calculation of Wannier-Stark localization in superlattices
We present an alternative method for the exact calculations of the Wannier-Stark (WS) localization in a long periodic potential corresponding to a (50 Angstrom /30 Angstrom) GaAs/Ga0.7Al0.3As superlattice. We show that the ... -
Binding energy of excitons in symmetric and asymmetric coupled double quantum wells in a uniform magnetic field
Kasapoglu, E; Sari, H; Balkan, N; Sokmen, I; Ergun, Y (IOP PUBLISHING LTD, 2000)The binding energy of excitons in symmetric and asymmetric coupled double GaAs/Ga1-xAlxAs quantum wells is calculated by using a variational approach. The results have been obtained in the presence of a uniform magnetic ... -
Electric field dependence of the excitonic properties in graded double quantum wells
A quasi-bound state approximation is used to obtain the electric field dependence of the eigenvalues, eigenfunctions, electron-hole overlap integrals and excitonic binding energies for coupled, graded double quantum wells ... -
Intense field effects on shallow donor impurities in graded quantum wells
Sari, H; Kasapoglu, E; Sokmen, I; Balkan, N (IOP PUBLISHING LTD, 2003)Using a variational method and within the effective mass approximation, we calculate the laser-field dependence of binding energy and the polarizability of shallow-donor impurities in graded quantum wells under an external ... -
Tilted magnetic field effect on the subbands of a GaAlAs diode with a GaAs quantum well
Turkoglu, A; Amca, R; Ergun, Y; Sokmen, I; Balkan, N (ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2003)We have calculated the subbands in the GaAs quantum well at the n-side of the junction in a Ga1-xAlxAs diode. We show that the density of carriers confined in the quantum well increases by the increasing magnetic field ...