Browsing Fizik Bölümü Makale Koleksiyonu by Author "eec9db06-8ea8-4237-ba90-ec35736c3446"
Now showing items 1-20 of 42
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Binding energy, electronic states, and optical absorption in a staircase-like spherical quantum dot with hydrogenic impurity
Dakhlaoui H; Belhadj, W.; Musa, M. O.; Ungan, Fatih (2023)In this paper, we compute the impurity binding energy, electronic states, and optical absorption coefficients of a staircaselike spherical quantum dot with on-center hydrogenic impurity within the effective mass approximation. ... -
Combined effects of electric, magnetic, and intense terahertz laser fields on the nonlinear optical properties in GaAs/GaAlAs quantum well with exponentially confinement potential
Ungan, Fatih (23 Novembe)We are presenting a theoretical investigation on the effects of applied electric, magnetic, and non-resonant intense laser field on the coefficients of intersubband linear, third-order nonlinear, and total optical ... -
Control of electronic and optical properties of a laser dressed double quantum dot molecule by lateral electric field
Ungan, Fatih (15 August )We study the confined states of a molecule formed by two laterally coupled quantum dots. The static electric field and incident plane wave laser field are considered with different polarization. The respective Shr¨odinger ... -
Dynamics of nonlinear optical rectification, second, and third harmonic generation in asymmetric triangular double quantum wells due to static electric and magnetic fields
Al, Emre Bahadır; Kasapoğlu, Esin; Ungan, Fatih (2022/4)In this study, we present a theoretical simulation of the impact of applied external electric and magnetic fields on the nonlinear optical rectification (NOR), second harmonic generation (SHG), and third harmonic generation ... -
Dynamics of nonlinear optical rectification, second, and third harmonic generation in asymmetric triangular double quantum wells due to static electric and magnetic fields
Al, E. B.; Kasapoglu, E.; Ungan, Fatih (2022)In this study, we present a theoretical simulation of the impact of applied external electric and magnetic fields on the nonlinear optical rectification (NOR), second harmonic generation (SHG), and third harmonic generation ... -
Effect of intense laser and electric fields on nonlinear optical properties of cylindrical quantum dot with Morse potential
Ungan, Fatih (4 March 20)In this study, the influence of the external electric field on the nonlinear optical properties of a laser dressed cylindrical quantum dot with axial Morse potential are theoretically investigated using the total optical ... -
Effect of Razavy potential well parameters on the optical rectification, second, and third harmonic generation coefficients of Razavy quantum well in the presence of electric, magnetic, and THz laser fields
The paper presents the nonlinear optical rectification, second and third harmonic generation properties of a quantum well-formed within AlGaAs/GaAs heterostructures under the Razavy potential function. The effects of ... -
Effects of Applied Magnetic Field on the Optical Properties and Binding Energies Spherical GaAs Quantum Dot with Donor Impurity
Edet, Collins Okon; Al, Emre Bahadır; Ungan, Fatih; Ali, N.; Rusli, N.; Aljunid, S. A.; Endut, R.; Asjad, M. (2022/8/10)The screened modified Kratzer potential (SMKP) model is utilized to scrutinize the impacts of an applied magnetic field (MF) on the binding energies and linear and nonlinear optical properties spherical GaAs quantum dot ... -
Effects of Applied Magnetic Field on the Optical Properties and Binding Energies Spherical GaAs Quantum Dot with Donor Impurity
Okon Edet, C.; Al, E. B.; Ungan, Fatih; Ali, N.; Rusli, N.; Alwee Aljunid, S.; Endut, R.; Asjad, M. (2022)The screened modified Kratzer potential (SMKP) model is utilized to scrutinize the impacts of an applied magnetic field (MF) on the binding energies and linear and nonlinear optical properties spherical GaAs quantum dot ... -
Effects of external electric and magnetic field on the nonlinear optical rectification, second, and third-harmonic generations in GaAs/AlGaAs asymmetric triple quantum well
Tüzemen, A. T.; Al, E. B.; Dakhlaoui H; Ungan, Fatih (2023)In this paper, we theoretically investigate the nonlinear optical rectification (NOR), second-harmonic generation (SHG), and third-harmonic generation (THG) coefficients of an AlGaAs/GaAs asymmetric triple quantum well ... -
Effects of external fields on the nonlinear optical properties of an n-type quadruple δ-doped GaAs quantum wells
Linear, third-order, total optical absorption and relative refractive index change coefficients are investigated for an ntype δ-doped GaAs/AlxGa1−xAs quadruple quantum well with electric, magnetic as well as laser fields ... -
Effects of external fields on the nonlinear optical rectification and second harmonic generation of GaAs/GaAlAs zigzag quantum well
Tüzemen, A. T.; Dakhlaoui H; Ungan, Fatih (2023)For the first time, the impact of externally applied static electric and magnetic field on the nonlinear op- tical rectification (NOR) and second harmonic generation (SHG) coefficients of GaAs/GaAlAs zigzag quan- tum well ... -
Effects of hydrostatic pressure and temperature on the nonlinear optical properties of GaAs/ GaAlAs zigzag quantum well
Tüzemen, A. T.; Dakhlaoui, H.; Ungan, Fatih (2022)We have examined theoretically how the temperature and the hydrostatic pressure affect the total optical absorption coefficients, the total refractive index changes, and the second harmonic generation coefficients for ... -
Effects of the confinement potential parameters and optical intensity on the linear and nonlinear optical properties of spherical quantum dots
Edet, C. O.; Al, E. B.; Ungan, Fatih; Ali, N.; Ramli, M. M.; Asjad, M. (2023)We study the linear and nonlinear optical properties of a spherical GaAs quantum dot with screened modified Kratzer potential (SMKP) by solving the time-independent Schrödinger wave equation using the diagonalization method. ... -
In plane magnetic field and intense laser field effects on second harmonic generation of asymmetric AlGaAs/GaAs double quantum well
P´erez-Gonz´alez, J.; Rojas-Brise˜no, J. G.; Nava-Maldonado, F. M.; Del Rio-De Santiago, A.; Ungan, Fatih; Dakhlaoui, H.; Martinez-Orozco, Juan Carlos (2022)The optical properties for nano-structured semiconductor systems are of great importance nowadays, due to its possible implementation for the design of efficient optoelectronic devices. It is also well known that external ... -
Influence of applied external fields on the nonlinear optical properties of a semi-infinite asymmetric AlxGa1-xAs/GaAs quantum well
Ungan, Fatih (3 November)The asymmetric potential profiles are of great interest from the nonlinear optical properties point of view for semiconductor devices. The reason for this statement is because the existing theories on nonlinear ... -
Influence of structural variables and external perturbations on the nonlinear optical rectification, second, and third-harmonic generation in the InP/InGaAs triple quantum well structure
Sayraç, Muhammed; Belhadj, W.; Dakhlaoui H; Ungan, Fatih (2023)The InP/InGaAs triple quantum well (TQW) structure is of significant interest to researchers studying new generations of semiconductor optoelectronic devices, as it offers valuable opportunities for controlling and enhancing ... -
Intense terahertz laser field induced electro-magneto-donor impurity associated photoionization cross-section in Gaussian quantum wires
Using expressions derived within the compact density matrix approach, the peaks of optical absorption and the changes of refractive index of a hydrogenic impurity in a GaAs/GaAlAs Gaussian quantum well wire are calculated ... -
Interband transitions and exciton binding energy in a Razavy quantum well: effects of external fields and Razavy potential parameters
Sayraç, Muhammed; John Peter, A.; Ungan, Fatih (2022)In this paper, we theoretically investigated the influence of externally applied fields such as high-frequency non-resonant intense laser fields, static electric and magnetic fields, as well as structure parameters, on ... -
Investigating the optical, electronic, magnetic properties and DFT of NiO films prepared using RF sputtering with various argon pressures
Hopoğlu, Hicret; Kaya, Doğan; Maslov, Mikhail M.; Kaya Savaş; Demir İlkay; Altuntaş İsmail; Ungan, Fatih; Akyol, Mustafa; Ekicibil, Ahmet; ŞenadımTüzemen, Ebru (ELSEVIER, 2023)In this study, we investigated the structural, optical, magnetic, and conductive properties of nickel oxide (NiO) films on glass substrates deposited using Radio Frequency (RF) magnetron sputtering with varying Ar gas ...