Yazar "Sokmen, I" için listeleme
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Intersubband optical absorption in quantum wells under applied electric and intense laser fields
Within the framework of the effective mass approximation, we have theoretically investigated the linear intersubband optical absorption in a quantum well under external electric and intense laser field. Results obtained ... -
Intersubband optical absorption in Si delta-doped GaAs for the donor distribution and thickness as dependent on the applied electric field
We have theoretically investigated the intersubband transition for different doping concentrations and thickness in Si delta-doped GaAs with an applied electric field. The electronic properties such as the delta-potential ... -
Intersubband optical absorption of double Si delta-doped GaAs layers
For different applied electric fields the intersubband transitions of double Si delta-doped GaAs structures are theoretically investigated for a uniform donor distribution. The electronic structure has been calculated by ... -
Intersubband transitions for single, double and triple Si delta-doped GaAs layers
The intersubband transitions in single, double and triple Si delta-doped GaAs structures are theoretically studied for different applied electric fields. Electronic properties such as the confining potential, the subband ... -
Intersubband transitions in coupled triple-graded quantum wells under an electric field
Kasapoglu, E; Sari, H; Sokmen, I (WILEY-V C H VERLAG GMBH, 2005)The intersubband transitions were calculated in three different shaped triple-graded quantum wells. The investigation involved changing the depth of the central well potential under an electric field applied parallel to ... -
Intersubband transitions in quantum wells under intense laser field
An intense laser field effect on the intersubband transitions in quantum wells is theoretically investigated within the framework of the effective-mass approximation. Results obtained show that intersubbband optical ... -
Intersubband transitions of Si delta-doped GaAs layer for different donor distribution models
For different donor distribution types we theoretically investigate the intersubband transitions of single Si delta-doped GaAs structure as dependent on the applied electric held. The diffusion of donor impurities is taken ... -
Magnetic field and intense laser radiation effects on the interband transitions in quantum well wires
Kasapoglu, E; Sari, H; Gunes, M; Sokmen, I (WORLD SCIENTIFIC PUBL CO PTE LTD, 2004)Magnetic field and intense laser radiation effects on the exciton binding energy and interband optical transitions in quantum well wires is calculated using a variational method and in the effective mass approximation. The ... -
A new approach to quantum well infrared photodetectors: Staircase-like quantum well and barriers
We present a theoretical investigation of a novel staircase-like quantum well infrared photodetector (QWIP). The proposed structure makes use of quantum wells and barriers with increasing Al content both in the wells and ... -
Nonlinear optical properties of triple delta-doped quantum wells: The impact of the applied external fields
Ungan, F.; Mora-Ramos, M. E.; Kasapoglu, E.; Sari, H.; Sokmen, I (ELSEVIER GMBH, 2019)In the present paper, we theoretically investigate the effect of applied external fields, such as electric, magnetic, and intense terahertz laser fields on the optical absorption and the relative refractive index change ... -
Optical properties of excitons in quantum well wires under the magnetic field
Kasapoglu, E; Sari, H; Sokmen, I (WORLD SCIENTIFIC PUBL CO PTE LTD, 2003)The binding energy of excitons in quantum well wires of GaAs surrounded by Ga1-xAlxAs was calculated in an effective mass approximation with the use of the variational approach. Results obtained show that the exciton binding ... -
Optical transitions in quantum well wires under intense laser radiation
Sari, H; Kasapoglu, E; Sokmen, I; Gunes, M (ELSEVIER SCIENCE BV, 2003)The influence of a laser-field on the exciton binding energy and interband optical transitions in quantum-well wires is calculated by using a variational method and in the effective mass approximation. We conclude that in ... -
The orbit centre dependence of the energy levels in a single quantum well under external titled magnetic and electric fields
Ergun, Y; Sokmen, I; Sari, H; Elagoz, S; Arikan, MC (IOP PUBLISHING LTD, 1997)The: analytical solutions of the Schrodinger equation for a square well system subjected to an externally applied electric field in the growth direction and an externally applied tilted magnetic field are obtained and the ... -
The photoionization cross-section and binding energy of impurities in quantum wires: Effects of the electric and magnetic field
Kasapoglu, E; Sari, H; Yesilgul, U; Sokmen, I (WORLD SCIENTIFIC PUBL CO PTE LTD, 2004)Using a variational approach, we have calculated the impurity position dependence of the photoionizaton cross-section and the binding energy for a hydrogenic donor impurity in a quantum well wire in the presence of the ... -
Photoionization of donor impurities in quantum wires in a magnetic field
Sari, H; Sokmen, I; Yesilgul, U (IOP PUBLISHING LTD, 2004)Using a variational approach, we have calculated the impurity position dependence of the photoionization cross-section and the binding energy of a hydrogenic donor impurity in a quantum well wire in the presence of the ... -
The self-consistent calculation of Si delta-doped GaAs structures
In this study, we report results of a self-consistent calculation obtained for the sub-band structure of Si delta -doped GaAs material by using a new alternative method. We will discuss the influence of the delta -doping ... -
Shallow donor impurities in different shaped double quantum wells under the electric field
Kasapoglu, E; Sokmen, I (WILEY-V C H VERLAG GMBH, 2004)The binding energy of the donor impurity in double triangle quantum well (DTQW), double graded (DGQW) and double square (DSQW) GaAs-(Ga,Al)As quantum wells under the electric field is calculated by using a variational ... -
Shallow donor impurities in different shaped double quantum wells under the electric field (vol 241, pg 1066, 2004)
Kasapoglu, E; Sokmen, I (WILEY-V C H VERLAG GMBH, 2005)… -
Shallow donor impurities in different shaped double quantum wells under the hydrostatic pressure and applied electric field
Kasapoglu, E; Sari, H; Sokmen, I (ELSEVIER SCIENCE BV, 2005)The combined electric field and hydrostatic pressure effects on the binding energy of the donor impurity in double triangle quantum well (DTQW), double graded (DGQW) and double square (DSQW) GaAs-(Ga,Al)As quantum wells ...