Browsing Fizik Bölümü Makale Koleksiyonu by Access Type "info:eu-repo/semantics/openAccess"
Now showing items 21-40 of 73
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Effects of the confinement potential parameters and optical intensity on the linear and nonlinear optical properties of spherical quantum dots
(Elsevier, 01.01.2023)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. ... -
Electric field effect on the intersubband optical absorption of GeSn quantum wells with parabolically graded barriers
(Publisher name SPRINGER HEIDELBERG, 2023)In this study, we propose a theoretical simulation of a Ge0.9Sn0.1 rectangular SQW with GeSn parabolically graded barriers (PGBs) in the terahertz (THz) region. The discrete intra-band confined energy levels and their ... -
Energy transitions and half-life determinations of Sc isotopes from photonuclear reaction on Ti target
(World Scientific Publishing Company, 07/03/2022)For the activation of the target nucleus, bremsstrahlung photons generated in a medical linear accelerator can be used. Due to particle separation energy limitations for low photon energies in the giant resonance region ... -
Estimation of fission barrier heights for even–even superheavy nuclei using machine learning approaches
(2023/3/21)With the fission barrier height information, the survival probabilities of super- heavy nuclei can also be reached. Therefore, it is important to have accurate knowledge of fission barriers, for example, the discovery ... -
Estimation of the S34 (0) S-factor for 3He (α, γ) 7Be reaction by using distorted wave born approximation and artificial neural network
(2023/9/6)The astrophysical S-factor and total cross-section of radiative capture reaction are analyzed using the first-order distorted wave born approximation and artificial neural network. To make estimations of S 34 (0) at ... -
Estimations of first 2+ energy states of even even nuclei by using artificial neural networks
(Indian Journal of Physics, 2022)The first excited 2+ energy states of nuclei give much substantial information related to the nuclear structure. All excited states of nuclei are shown regularities in spin, parity, and energy, including these levels. In ... -
Estimations of first 2+ energy states of even even nuclei by using artificial neural networks
(Indian Journal of Physics, 2022)The first excited 2+ energy states of nuclei give much substantial information related to the nuclear structure. All excited states of nuclei are shown regularities in spin, parity, and energy, including these levels. In ... -
Evaluation of the external electric- and magnetic field-driven Mathieu quantum dot's optical observables
(ELSEVIERRADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS, 15.08.2022)In this study, for the first time, the total refractive index changes (TRICs) and total absorption coefficients (TACs) of the quantum dot including the Mathieu potential confinement formed by the In𝑥�Ga1−𝑥�As/GaAs he ... -
Evaluation of the external electric- and magnetic field-driven Mathieu quantum dot’s optical observables
(2022)In this study, for the first time, the total refractive index changes (TRICs) and total absorption coefficients (TACs) of the quantum dot including the Mathieu potential confinement formed by the InGaAs/GaAs heterostructure ... -
Full optical SESAM characterization methods in the 1.9 to 3-µm wavelength regime
(01/03/2021)Semiconductor saturable absorber mirrors (SESAMs) are widely used for modelocking of various ultrafast lasers. The growing interest for SESAM-modelocked lasers in the short-wave infrared and mid-infrared regime requires ... -
Generation of adiabatic pulses
(2022)A two-dimensional GaAs/AlGaAs quantum disk under the influence of a non-central potential resulting in azimuthal distortion, subjected to an external static electric field, is exposed to a linearly polarized laser pulse. ... -
High average output power from a backside-cooled 2-µm InGaSb VECSEL with full gain characterization
(22/11/2021)We compare the gain and continuous wave lasing properties of two InGaSb-based vertical external cavity surface emitting lasers (InGaSb VECSEL) with different heat management approaches operating at a center wavelength of ... -
High harmonic generations in GaAs/AlGaAs superlattice: Effect of electric and magnetic field
(Elsevier, 2023)In this study, we have examined the nonlinear optical rectification (NOR), the second harmonic generation (SHG), and the third harmonic generation (THG) coefficients of the AlxGa1-xAs/GaAs superlattice with a periodically ... -
High harmonic generations triggered by the intense laser field in GaAs/ AlxGa1-xAs honeycomb quantum well wires
(Elsevier, 2023)Under constant electric and magnetic fields, the potential profile of the honeycomb quantum well wire (HQWW) is studied for varying intense laser fields to trigger and optimize high harmonics (nonlinear optical rectification, ... -
Influence of applied external fields on the nonlinear optical properties of a semiinfinite asymmetric AlxGa1-xAs/GaAs quantum well
(2021)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 optical ... -
Influence of perturbations on linear and nonlinear optical properties of quantum dot
(Springer Berlin Heidelberg, 2023/10/10)This study focused on investigating the influence of perturbations on the linear and nonlinear optical properties of Ga As/Ga1−x Alx As screened modified Kratzer potential (SMKP) quantum dot (QD). The optical absorption ... -
Influence of position dependent effective mass on impurity binding energy and absorption in quantum wells with the Konwent potential
(2021)In this work, we perform a theoretical investigation on the effect of position-dependent effective mass on binding energy and optical absorption coefficient for donor impurities in single and double quantum wells defined ... -
Influence of the Size and Dielectric Environments on the Optical Properties in CdS/ZnS Core-Shell Quantum Dot
(Publisher name SPRINGER, 2023)In this work, the electronic and optical properties of CdS/ZnS core–shell quantum dots (CSQDs) capped in diferent matrices were investigated theoretically. Through the efective mass approximation (EMA) and the density ... -
Intense laser field effect on the nonlinear optical properties of triple quantum wells consisting of parabolic and inverse-parabolic quantum wells
(IOP Publishing, 25.02.2022)The nonlinear optical rectification, the second harmonic generation coefficient, and the third harmonic generation coefficient in parabolic-inverse parabolic-parabolic quantum wells (PIPPQWs) and inverse parabolic-para ... -
Li@Cn immersed in nonideal classical plasmas
(2022)The present work considers an endohedrally encapsulated guest Li atom immersed in a nonideal classical plasma under a spherical encompassment. In this combined system, the Woods–Saxon potential is used as the model for ...