Browsing by Author "Sokmen, Ismail"
Now showing items 1-15 of 15
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The effect of magnetic field on the impurity binding energy of shallow donor impurities in a Ga1-xInxNyAs1-y/GaAs quantum well
Yesilgul, Unal; Ungan, Fatih; Sakiroglu, Serpil; Duque, Carlos; Mora-Ramos, Miguel; Kasapoglu, Esin; Sari, Huseyin; Sokmen, Ismail (SPRINGER, 2012)Using a variational approach, we have investigated the effects of the magnetic field, the impurity position, and the nitrogen and indium concentrations on impurity binding energy in a Ga1-x In (x) N (y) As1-y /GaAs quantum ... -
Effect of the High-Frequency Laser Radiation on the Nonlinear Optical Properties of n-Type Double delta-Doped GaAs Quantum Wells
Ungan, Fatih; Sari, Huseyin; Kasapoglu, Esin; Yesilgul, Unal; Sakiroglu, Serpil; Sokmen, Ismail (AMER SCIENTIFIC PUBLISHERS, 2019)In the present work, the effect of non-resonant intense laser field on the nonlinear optical rectification and second and third harmonic generation of n-type double delta-doped GaAs quantum well is studied in detail. The ... -
Effect of the intense laser field on the valance band for Ga1-xAlxAs/GaAs heterostructure
Ozturk, Emine; Sokmen, Ismail (ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2009)The energy levels of holes in symmetric single quantum well under the laser field are theoretically calculated within the framework of the effective mass approximation. Results obtained show that the potential profile and ... -
Effects of an intense, high-frequency laser field on bound states in Ga1-xInxNyAs1-y/GaAs double quantum well
Ungan, Fatih; Yesilgul, Unal; Sakiroglu, Serpil; Kasapoglu, Esin; Erol, Ayse; Arikan, Mehmet Cetin; Sari, Huseyin; Sokmen, Ismail (SPRINGER, 2012)Within the envelope function approach and the effective-mass approximation, we have investigated theoretically the effect of an intense, high-frequency laser field on the bound states in a Ga (x) In1 - x N (y) As1 - y /GaAs ... -
The effects of hydrostatic pressure on the nonlinear intersubband transitions and refractive index changes of different QW shapes
Ozturk, Emine; Sokmen, Ismail (ELSEVIER SCIENCE BV, 2012)In this study, the effects of hydrostatic pressure on the linear and nonlinear intersubband transitions and the refractive index changes in the conduction band of different quantum well shapes are theoretically calculated ... -
Electronic properties of p-type delta-doped GaAs structure under electric field
Ozturk, Emine; Sokmen, Ismail (IOP PUBLISHING LTD, 2008)We theoretically investigate the electronic properties of p-type delta-doped GaAs inserted into a quantum well under the electric field, at T = 0 K. We will investigate the influence of the electric field on the delta-doping ... -
Intersubband transitions and refractive index changes in coupled double quantum well with different well shapes
Ozturk, Emine; Sokmen, Ismail (ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2011)In this study, both the linear intersubband transitions and the refractive index changes in coupled double quantum well (DQW) with different well shapes for different electric fields are theoretically calculated within ... -
Intersubband transitions in an asymmetric double quantum well
Ozturk, Emine; Sokmen, Ismail (ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD, 2007)The intersubband optical absorption in an asymmetric double quantum well for different barrier widths and the right well widths are theoretically calculated within the framework of effective mass approximation. The results ... -
Nonlinear intersubband absorption and refractive index changes in square and graded quantum well modulated by temperature and Hydrostatic pressure
Ozturk, Emine; Sokmen, Ismail (ELSEVIER SCIENCE BV, 2013)In this study, the effects of hydrostatic pressure and temperature on the linear and nonlinear intersubband transitions and the refractive index changes in the conduction band of square and graded quantum well (QW) are ... -
Nonlinear intersubband transitions in a parabolic and an inverse parabolic quantum well under applied magnetic field
Ozturk, Emine; Sokmen, Ismail (ELSEVIER SCIENCE BV, 2014)In this study, both the intersubband optical absorption coefficients and the refractive index changes as dependent on the magnetic field are calculated in a parabolic (PQW) and an inverse parabolic quantum well (IPQW) for ... -
Nonlinear Intersubband Transitions in Square and Graded Quantum Wells Modulated by Intense Laser Field
Ozturk, Emine; Sokmen, Ismail (IOP PUBLISHING LTD, 2014)The intersubband optical absorption coefficients and the refractive index change depending on the intense laser field (ILF); both are calculated in a square quantum well (SQW) and a graded quantum well (GQW). Our results ... -
Nonlinear optical properties of asymmetric n-type double delta-doped GaAs quantum well under intense laser field
Sari, Huseyin; Kasapoglu, Esin; Yesilgul, Unal; Sakiroglu, Serpil; Ungan, Fatih; Sokmen, Ismail (SPRINGER, 2017)The effect of non-resonant intense laser field on the intersubband-related optical absorption coefficient and refractive index change in the asymmetric n-type double delta-doped GaAs quantum well is theoretically investigated. ... -
Resonant peaks of the linear optical absorption and rectification coefficients in GaAs/GaAlAs quantum well: Combined effects of intense laser, electric and magnetic fields
Ozturk, Emine; Sokmen, Ismail (WORLD SCIENTIFIC PUBL CO PTE LTD, 2015)In this study, the resonant peaks of the linear optical absorption (OA) and rectification coefficients in GaAs/GaAlAs quantum well are calculated as dependent on the applied electric field (F), the magnetic field (B) and ... -
The variation of electronic properties with the doping concentration of modulation-doped AlxGa1-xAs-GaAs double quantum wells
Ungan, Fatih; Ozturk, Emine; Ergun, Yuksel; Sokmen, Ismail (ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD, 2007)In this paper we have calculated the sub-band structure and the confinement potential of modulation-doped Ga1-xAlxAs-GaAs double quantum wells as a function of the doping concentration. The electronic properties of this ...