Browsing by Author "Yesilgul, U."
Now showing items 41-50 of 50
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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 ... -
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 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 the Tietz-Hua quantum well under the applied external fields
Kasapoglu, E.; Sakiroglu, S.; Ungan, F.; Yesilgul, U.; Duque, C. A.; Sokmen, I. (ELSEVIER SCIENCE BV, 2017)In this study, the effects of the electric and magnetic fields as well as structure parameter-gamma on the total absorption coefficient, including linear and third order nonlinear absorption coefficients for the optical ... -
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 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 ... -
Simultaneous effects of hydrostatic pressure and temperature on the nonlinear optical properties in a parabolic quantum well under the intense laser field
Ungan, F.; Yesilgul, U.; Sakiroglu, S.; Mora-Ramos, M. E.; Duque, C. A.; Kasapoglu, E.; Sari, H.; Sokmen, I. (ELSEVIER SCIENCE BV, 2013)In this present study, we have theoretically investigated the effects of hydrostatic pressure and temperature on the nonlinear optical properties in a typical GaAs/Ga0.7Al0.3As parabolic quantum well under the intense laser ... -
Study of electron-related optical responses in the Tietz-Hua quantum well: Role of applied external fields
Ungan, F.; Sari, H.; Kasapoglu, E.; Yesilgul, U.; Sakiroglu, S.; Sokmen, I. (ELSEVIER SCIENCE BV, 2018)In the present study, we theoretically reported the effects of applied external fields, such as intense laser field and electric and magnetic fields, on the optical absorption coefficient and refractive index changes in ... -
Third-harmonic generation of a laser-driven quantum dot with impurity
Sakiroglu, S.; Kilic, D. Gul; Yesilgul, U.; Ungan, F.; Kasapoglu, E.; Sari, H.; Solunen, I (ELSEVIER SCIENCE BV, 2018)The third-harmonic generation (THG) coefficient for a laser-driven quantum dot with an on-center Gaussian impurity under static magnetic field is theoretically investigated. Laser field effect is treated within the ...