Browsing by Author "Sari, H."
Now showing items 21-40 of 90
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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 on optical responses of n-type delta doped GaAs quantum well under applied electric and magnetic fields
Sari, H.; Ungan, F.; Sakiroglu, S.; Yesilgul, U.; Sokmen, I (ELSEVIER GMBH, URBAN & FISCHER VERLAG, 2018)This work presents the results of the theoretical study of the effects of non-resonant intense laser field, electric and magnetic fields on optical responses of GaAs n-type delta-doped quantum well associated to the electron ... -
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 impurities in quantum-well wires
Yesilgul, U.; Sakiroglu, S.; Kasapoglu, E.; Sari, H.; Soekmen, I. (ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2010)Using a variational approach, we have calculated the donor impurity related photoionization cross-section and impurity binding in GaAs/GaAlAs quantum-well wires under different temperature and hydrostatic pressure conditions. ... -
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 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 ... -
The effects of the intense laser field on donor impurities in a cylindrical GaxIn1-xNyAs1-y/GaAs quantum dot under the electric field
Kasapoglu, E.; Duque, C. A.; Sakiroglu, S.; Sari, H.; Sokmen, I. (ELSEVIER SCIENCE BV, 2011)For different nitrogen and indium concentrations, intense laser field (ILF) effect on donor impurity binding energy in a cylindrical GaxIn1-xNyAs1-y/GaAs quantum dot (QD) has been studied. Results show that ILF creates an ... -
The effects of the magnetic field and dielectric screening on the diamagnetic susceptibility of a donor in a quantum well with anisotropic effective mass
Kilicarslan, E.; Sakiroglu, S.; Koksal, M.; Sari, H.; Sokmen, I. (ELSEVIER SCIENCE BV, 2010)The diamagnetic susceptibility and the binding energy of a hydrogenic donor in a quantum well with different mass anisotropy parameters gamma=m(perpendicular to)/m(parallel to) are investigated in the presence of a magnetic ... -
Electric and magnetic field modulated energy dispersion, conductivity and optical response in double quantum wire with spin-orbit interactions
Karaaslan, Y.; Gisi, B.; Sakiroglu, S.; Kasapoglu, E.; Sari, H.; Sokmen, I. (ELSEVIER SCIENCE BV, 2018)We study the influence of electric field on the electronic energy band structure, zero-temperature ballistic conductivity and optical properties of double quantum wire. System described by double well anharmonic confinement ... -
The electric field dependence of the photoionization cross-section of shallow donor impurities in quantum dots: Infinite and finite model
Kasapoglu, E.; Sari, H.; Yesilgul, U.; Sokmen, O. (WORLD SCIENTIFIC PUBL CO PTE LTD, 2006)Using a variational approach, we have calculated the photo-ionization cross-section of a shallow donor impurity in a quantum dot with finite and infinite potential barriers in the presence of an electric field as a function ... -
Electron-related nonlinearities in GaAs-Ga1-xAlxAs double quantum wells under the effects of intense laser field and applied electric field
Mora-Ramos, M. E.; Duque, C. A.; Kasapoglu, E.; Sari, H.; Sokmen, I. (ELSEVIER SCIENCE BV, 2013)The combined effects of intense laser radiation and applied electric fields on the intersubband-related linear and nonlinear optical properties in GaAs-based quantum wells are discussed. It is shown that for asymmetric ... -
Electron-related optical responses in Gaussian potential quantum wells: Role of intense laser field
Sari, H.; Ungan, F.; Sakiroglu, S.; Yesilgul, U.; Kasapoglu, E.; Sokmen, I. (ELSEVIER SCIENCE BV, 2018)A theoretical study of the effects of non-resonant intense laser field on the optical response in a Gaussian potential quantum well is performed in the framework of the effective mass approximation. The obtained results ...