Browsing by Author "Sokmen, I."
Now showing items 21-40 of 105
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The effect of the intense laser field on the electronic states and optical properties of n-type double delta-doped GaAs quantum wells
Kasapoglu, E.; Yesilgul, U.; Ungan, F.; Sokmen, I.; Sari, H. (ELSEVIER SCIENCE BV, 2017)In this work, within the effective mass approximation we have performed a theoretical study of electronic states, the intersubband-related optical absorption coefficient and relative refractive index change properties in ... -
The effect of the intense laser field on the intersubband transitions in Ga1-xInxNyAs1-y/GaAs single quantum well
Ungan, F.; Kasapoglu, E.; Duque, C. A.; Sari, H.; Sokmen, I. (ELSEVIER SCIENCE BV, 2011)The effect of the intense laser field on the intersubband optical absorption for (1-2) transition in a Ga1-xInxNyAs1-y/GaAs single quantum well for different nitrogen and indium concentrations is investigated. The numerical ... -
Effects of an in-plane magnetic field on the energy dispersion, spin texturing and conductance of double quantum wires
Gisi, B.; Karaaslan, Y.; Sakiroglu, S.; Kasapoglu, E.; Sari, H.; Sokmen, I. (ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2016)We investigate the electronic structure, spin and transport properties of double quantum wires formed by a symmetric, double quartic-well potential subjected to an in-plane magnetic field by taking into account Rashba and ... -
Effects of an Intense Laser Field and Hydrostatic Pressure on the Intersubband Transitions and Binding Energy of Shallow Donor Impurities in a Quantum Well
Yesilgul, U.; Ungan, F.; Kasapoglu, E.; Sari, H.; Sokmen, I. (IOP PUBLISHING LTD, 2011)We have calculated the intersubband transitions and the ground-state binding energies of a hydrogenic donor impurity in a quantum well in the presence of a high-frequency laser field and hydrostatic pressure. The calculations ... -
Effects of an intense, high-frequency laser field on the binding energy of excitons confined in a GaInNAs/GaAs quantum well
Yesilgul, U.; Ungan, F.; Kasapoglu, E.; Sari, H.; Sokmen, I. (ELSEVIER SCIENCE BV, 2012)The effects of an intense, high-frequency laser field linearly polarized along the growth direction on the binding energy of excitons confined in a GaInNAs/GaAs quantum well is computed for different nitrogen and indium ... -
Effects of an intense, high-frequency laser field on the intersubband transitions and impurity binding energy in semiconductor quantum wells
Ungan, F.; Yesilgul, U.; Sakiroglu, S.; Kasapoglu, E.; Sari, H.; Sokmen, I. (ELSEVIER SCIENCE BV, 2010)Within the framework of effective-mass approximation, using a variational method, the effect of high-frequency laser field on intersubband transitions and the binding energy of shallow-donor impurities in a semiconductor ... -
Effects of applied electric and magnetic fields on the nonlinear optical properties of asymmetric GaAs/Ga1-xAlxAs double inverse parabolic quantum well
Al, E. B.; Ungan, F.; Yesilgul, U.; Kasapoglu, E.; Sari, H.; Sokmen, I. (ELSEVIER SCIENCE BV, 2015)The combined effects of electric and magnetic fields on the optical absorption coefficients and refractive index changes related to the intersubband transitions within the conduction band of asymmetric GaAs/Ga1-xAlxAs ... -
Effects of applied electromagnetic fields on the linear and nonlinear optical properties in an inverse parabolic quantum well
Ungan, F.; Yesilgul, U.; Kasapoglu, E.; Sari, H.; Sokmen, I. (ELSEVIER SCIENCE BV, 2012)In this present work, we have investigated theoretically the effects of applied electric and magnetic fields on the linear and nonlinear optical properties in a GaAs/AlxGa1-xAs inverse parabolic quantum well for different ... -
Effects of applied electromagnetic fields on the optical transitions in a V-shaped quantum well
Yesilgul, U.; Ungan, F.; Sakiroglu, S.; Kasapoglu, E.; Sari, H.; Sokmen, I. (ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2013)In this study, the interband optical transitions and the binding energy of an exciton in a GaAs/Ga1-xAlxAs V-shaped quantum well (VQW) under the electric and magnetic fields are calculated. The calculations were performed ... -
Effects of electromagnetic fields on the nonlinear optical properties of CrossMaric asymmetric double quantum well under intense laser field
Yesilgul, U.; Sari, H.; Ungan, F.; Martinez-Orozco, J. C.; Restrepo, R. L.; Mora-Ramos, M. E.; Duque, C. A.; Sokmen, I. (ELSEVIER SCIENCE BV, 2017)In this study, the effects of electric and magnetic fields on the optical rectification and second and third harmonic generation in asymmetric double quantum well under the intense non-resonant laser field is theoretically ... -
The effects of hydrostatic pressure and intense laser field on the linear and nonlinear optical properties of a square quantum well
Ungan, F.; Yesilgul, U.; Kasapoglu, E.; Sari, H.; Sokmen, I. (ELSEVIER SCIENCE BV, 2012)In this paper, the effects of hydrostatic pressure, temperature and intense laser field on the linear and non-linear optical processes in the conduction band of a square quantum well are numerically investigated in the ... -
Effects of indium and nitrogen mole concentrations on the optical properties in a GaInNas/GaAs quantum well under the intense laser field
Ungan, F.; Sakiroglu, S.; Yesilgul, U.; Erol, A.; Kasapoglu, E.; Sari, H.; Sokmen, I. (ELSEVIER SCIENCE BV, 2013)The effect of indium and nitrogen mole concentrations on the nonlinear optical properties in a Ga1-xInxNyAs1-y/GaAs single quantum well under the intense laser field is theoretically studied within the effective mass ... -
The effects of intense laser field and electric field on intersubband absorption in a double-graded quantum well
Kasapoglu, E.; Sokmen, I. (ELSEVIER SCIENCE BV, 2008)In this study, the intense laser-field dependence of intersubband absorption coefficient for 1-2 transition in GaAs/Ga1-xAlxAs DGQW under the electric field is investigated. The obtained results show that by changing the ... -
Effects of magnetic and electric fields on the hydrogenic impurity in an ellipsoidal parabolic quantum dot
Kasapoglu, E.; Sari, H.; Sokmen, I. (WORLD SCIENTIFIC PUBL CO PTE LTD, 2008)The binding energy of a hydrogen-like impurity in an ellipsoidal parabolic quantum dot under the magnetic and electric fields have been discussed by using the effective mass approximation and the variational method. We ... -
Effects of magnetic field, hydrostatic pressure and temperature on the nonlinear optical properties in symmetric double semi-V-shaped quantum well
Yesilgul, U.; Ungan, F.; Al, E. B.; Kasapoglu, E.; Sari, H.; Sokmen, I. (SPRINGER, 2016)In this work, the effects of magnetic field, hydrostatic pressure and temperature on the linear and nonlinear optical properties in GaAs/AlxGa1-xAs symmetric double semi-V-shaped quantum well (DSVQWs) have been theoretically ... -
THE EFFECTS OF TEMPERATURE AND HYDROSTATIC PRESSURE ON THE DIAMAGNETIC SUSCEPTIBILITY OF A DONOR IN A QUANTUM WELL
Yesilgul, U.; Ungan, F.; Kasapoglu, E.; Sari, H.; Sokmen, I. (WORLD SCIENTIFIC PUBL CO PTE LTD, 2011)Using the effective-mass approximation within a variational scheme, we have calculated the diamagnetic susceptibility and binding energy of a hydrogenic donor in a quantum well under different temperatures and hydrostatic ... -
The effects of temperature and hydrostatic pressure on the photoionization cross-section and binding energy of shallow donor impurities in quantum dots
Yesilgul, U.; Kasapoglu, E.; Sari, H.; Sokmen, I. (ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2010)Using a variational approach we have calculated the hydrostatic pressure and temperature effects on the donor impurity related photoionization cross-section and impurity binding in GaAs/GaAlAs quantum dots Our calculations ... -
The effects of the electric and intense laser field on the binding energies of donor impurity states (1s and 2p(+/-)) and optical absorption between the related states in an asymmetric parabolic quantum well
Kasapoglu, E.; Sakiroglu, S.; Sokmen, I.; Restrepo, R. L.; Mora-Ramos, M. E.; Duque, C. A. (ELSEVIER SCIENCE BV, 2016)We have calculated the effects of electric and intense laser fields on the binding energies of the ground and some excited states of conduction electrons coupled to shallow donor impurities as well as the total optical ... -
The effects of the electric and magnetic fields on the nonlinear optical properties in the step-like asymmetric quantum well
Kasapoglu, E.; Ungan, F.; Duque, C. A.; Yesilgul, U.; Mora-Ramos, M. E.; Sari, H.; Sokmen, I. (ELSEVIER SCIENCE BV, 2014)In the present work, total optical absorption coefficient (the linear and third-order nonlinear) and total refractive index change for transition between two first lower-lying electronic levels in the step-like GaAs/Ga1-xAlxAs ...