Browsing by Author "Sari, H."
Now showing items 61-80 of 90
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Intense laser field effects on the third-harmonic generation in a quantum pseudodot system
Sakiroglu, S.; Kilic, D. Gul; Yesilgul, U.; Ungan, F.; Kasapoglu, E.; Sari, H.; Sokmen, I. (ELSEVIER SCIENCE BV, 2017)In this research, we present the effects of high-frequency intense laser field on the third-harmonic generation associated with intersubband transitions in a two-dimensional quantum pseudodot system subjected to an uniform ... -
Intense laser-induced electronic and optical properties in double finite oscillator potential
Sari, H.; Ungan, F.; Kasapoglu, E.; Sakiroglu, S.; Sokmen, I (TAYLOR & FRANCIS LTD, not define)In the present paper, a theoretically study of the non-resonant laser field effect on the optical response, such as nonlinear optical rectification (NOR), second (SHG) and third harmonic generation (THG) coefficients in ... -
Intersubband optical absorption in double quantum well under intense laser field
Ozturk, E.; Sari, H.; Sokmen, I. (EDP SCIENCES S A, 2006)The intersubband absorption in symmetric double quantum wells under the laser field is theoretically calculated within the framework of the effective mass approximation. Results obtained show that intersubbband optical ... -
THE INTERSUBBAND TRANSITIONS AND BINDING ENERGY OF SHALLOW DONOR IMPURITIES IN DIFFERENT SHAPED QUANTUM WELLS UNDER THE MAGNETIC FIELD
Yesilgul, U.; Ungan, F.; Kasapoglu, E.; Sari, H.; Sokmen, I. (WORLD SCIENTIFIC PUBL CO PTE LTD, 2011)The intersubband transitions and impurity binding energy in differently shaped semiconductor quantum wells under a magnetic field are calculated using a variational method within the effective mass approximation. Our ... -
The linear and nonlinear intersubband optical absorption coefficients and refractive index changes in a V-shaped quantum well under the applied electric and magnetic fields
Yesilgul, U.; Ungan, F.; Kasapoglu, E.; Sari, H.; Sokmen, I. (ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2011)In this study, the changes in the optical absorption coefficients and the refractive index in a V-shaped quantum well have investigated theoretically. Within the effective mass approximation, the electronic structure of ... -
Linear and nonlinear optical properties in a double inverse parabolic quantum well under applied electric and magnetic fields
Ungan, F.; Mora-Ramos, M. E.; Duque, C. A.; Kasapoglu, E.; Sari, H.; Sokmen, I. (ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2014)In the present work, the effects of electric and magnetic fields on the optical absorption coefficient and refractive index changes associated with intersubband transitions in a GaAs/AlxGa1-xAs double inverse parabolic ... -
Linear and nonlinear optical properties in a semiconductor quantum well under intense laser radiation: Effects of applied electromagnetic fields
Mora-Ramos, M. E.; Duque, C. A.; Kasapoglu, E.; Sari, H.; Sokmen, I. (ELSEVIER SCIENCE BV, 2012)In this work we are studying the intense laser effects on the electron-related linear and nonlinear optical properties in GaAs-Ga1-xAlxAs quantum wells under applied electric and magnetic fields. The calculated quantities ... -
Linear and nonlinear optical properties in asymmetric double semi-V-shaped quantum well
Yesilgul, U.; Ungan, F.; Kasapoglu, E.; Sari, H.; Sokmen, I. (ELSEVIER SCIENCE BV, 2015)In this present work, the effects of the structure parameters such as the right-well width and the rightbarrier height on the linear, third-order nonlinear and total absorption and refractive index changes of asymmetric ... -
Magnetic-field effect on the diamagnetic susceptibility of hydrogenic impurities in quantum well-wires
Koksal, M.; Kilicarslan, E.; Sari, H.; Sokmen, I. (ELSEVIER SCIENCE BV, 2009)We have studied the magnetic field effects on the diamagnetic susceptibility and binding energy of a hydrogenic impurity in a quantum well-wire by taking into account spatially dependent screening. Using the effective-mass ... -
Morse quantum well modulated by nonresonant intense laser field: Binding energy and optical absorption related to shallow donor impurities
Kasapoglu, E.; Sakiroglu, S.; Sari, H.; Sokmen, I.; Duque, C. A. (ELSEVIER GMBH, 2019)Binding energies of the lowest two s-symmetric impurity states and linear, third order nonlinear, and total optical absorption coefficients corresponding to the 1s -> 2s transitions for electrons in a Morse quantum well ... -
Nonlinear optical absorption and refractive index in GaInNAs/GaAs double quantum wells under intense laser field and applied electric field
Ungan, F.; Yesilgul, U.; Sakiroglu, S.; Kasapoglu, E.; Sari, H.; Sokmen, I. (ELSEVIER SCIENCE BV, 2013)In this present study, the combined effects of intense laser field and applied electric field on the nonlinear optical absorption and refractive index change in Ga1-xInxNyAs1-y/GaAs double quantum wells are theoretically ... -
Nonlinear optical properties of asymmetric double-graded quantum wells
Aydinoglu, H. S.; Sakiroglu, S.; Sari, H.; Ungan, F.; Sokmen, I. (TAYLOR & FRANCIS LTD, 2018)In this work, the effects of the structure parameters, such as the central barrier thickness and the aluminium concentrations x, on the linear and nonlinear intersubband optical absorption coefficients and refractive index ... -
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 ... -
Nonlinear optical rectification and the second and third harmonic generation in Poschl-Teller quantum well under the intense laser field
Sakiroglu, S.; Ungan, F.; Yesilgul, U.; Mora-Ramos, M. E.; Duque, C. A.; Kasapoglu, E.; Sari, H.; Sokmen, I. (ELSEVIER SCIENCE BV, 2012)In this work, the effect of a non-resonant intense laser field on the optical rectification and second and third harmonic generation in a Poschl-Teller quantum well is theoretically investigated. In this regard, the ... -
OPTICAL INTERSUBBAND TRANSITIONS AND BINDING ENERGIES OF DONOR IMPURITIES IN Ga1-xInxNyAs1-y/GaAs/Al-0.3 Ga0.7As QUANTUM WELL UNDER THE ELECTRIC FIELD
Ungan, F.; Yesilgul, U.; Kasapoglu, E.; Sari, H.; Sokmen, I. (WORLD SCIENTIFIC PUBL CO PTE LTD, 2012)The effects of nitrogen and indium mole concentration on the intersubband optical absorption for (1-2) transition and the binding energy of the shallow-donor impurities in a Ga1-xInxNyAs1-y/GaAs/Al0.3Ga0.7As quantum well ... -
Optical properties of double quantum wires under the combined effect of spin-orbit interaction and in-plane magnetic field
Sakiroglu, S.; Gisi, B.; Karaaslan, Y.; Kasapoglu, E.; Sari, H.; Sokmen, I. (ELSEVIER SCIENCE BV, 2016)In this work, we investigate the intersubband optical absorption coefficients and refractive index changes for transitions between the lower-lying electronic levels of double quantum wires formed by a symmetric, double ... -
Optical response in a laser-driven quantum pseudodot system
Kilic, D. Gul; Sakiroglu, S.; Ungan, F.; Yesilgul, U.; Kasapoglu, E.; Sari, H.; Sokmen, I. (ELSEVIER SCIENCE BV, 2017)We investigate theoretically the intense laser-induced optical absorption coefficients and refractive index changes in a two-dimensional quantum pseudodot system under an uniform magnetic field. The effects of non-resonant, ... -
Photoionization cross-section and binding energy of donor impurities in GaAs, Ge and Si quantum wires with infinite barriers
Koksal, M.; Kasapoglu, E.; Sari, H.; Sokmen, I. (ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2009)Within the effective-mass approximation, we have investigated the binding energies of donor impurities as a function of the wire dimensions and the photoionization cross-section for a hydrogenic donor impurity placed on ... -
Photoionization cross-section and binding energy of shallow donor impurities in Ga1-xInxNyAs1-y/GaAs quantum wires
Yesilgul, U.; Kasapoglu, E.; Sari, H.; Sokmen, I. (PERGAMON-ELSEVIER SCIENCE LTD, 2011)We have investigated the effects of the nitrogen and indium concentrations on the photoionization crosssection and binding energy of shallow donor impurities in Ga1-xInxNyAs1-y/GaAs quantum wires. The numerical calculations ... -
The polarizability and the photoionization cross-section under the external fields for donor impurities in quantum well-wire
Koksal, M.; Kasapoglu, E.; Sari, H.; Sokmen, I. (WILEY-V C H VERLAG GMBH, 2007)In this study, we have calculated the donor impurity binding energy, donor impurity related photoionization cross-section and polarizability in symmetric GaAs/Ga1-xAlxAs quantum well-wire as a function of the impurity ...