Yayıncı "IOP Publishing LTD" Fizik Bölümü için listeleme
Toplam kayıt 26, listelenen: 1-20
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Comparative evaluation of InAs/GaSb superlattices for mid infrared detection: p-i-n versus residual doping
(IOP Publishing LTD, 2015)We report on the opto-electronic characterization of an InAs/GaSb superlattice (SL) midwave infrared p-i-n photodetector structure (pin-SL) in comparison with the same structure with no intentional doping (i-SL). Both ... -
Complex quaternionic reformulation of the relativistic elastic collision problem
(IOP Publishing LTD, 2007)An alternative representational method is proposed for the investigation of relativistic elastic collision. Although using four vectors is a common way to represent relativistic quantities, complex quaternionic representation ... -
Comprehensive growth and characterization study on highly n-doped InGaAs as a contact layer for quantum cascade laser applications
(IOP Publishing LTD, 2018)We present growth and characterization studies of highly n-doped InGaAs epilayers on InP substrate by metal organic vapor phase epitaxy to use as an n-contact layer in quantum cascade laser applications. We have introduced ... -
Conservation of quantum efficiency in quantum well intermixing by stress engineering with dielectric bilayers
(IOP Publishing LTD, 2018)In semiconductor lasers, quantum well intermixing (QWI) with high selectivity using dielectrics often results in lower quantum efficiency. In this paper, we report on an investigation regarding the effect of thermally ... -
The Dirac equation in Kerr-Taub-NUT spacetime
(IOP Publishing LTD, 2013)We study the Dirac equation in the Kerr-Taub-NUT spacetime. We use Boyer-Lindquist coordinates and separate the resulting equations into radial and angular parts. We obtain some exact analytical solutions of the angular ... -
Donor-related third-order optical nonlinearites in GaAs/AlGaAs quantum wells at the THz region
(IOP Publishing LTD, 2011)GaAs/AlGaAs quantum wells doped with donor atoms are investigated for nonlinear optical applications in the THz range. The electronic properties of the quantum wells are obtained numerically by applying an iterative shooting ... -
Dynamical Casimir effect for a swinging cavity
(IOP Publishing LTD, 2009)The resonant scalar particle generation for a swinging cavity resonator in the Casimir vacuum is examined. It is shown that the number of particles grows exponentially when the cavity rotates at a specific external frequency. -
The dynamical Casimir effect for two oscillating mirrors in 3D
(IOP Publishing LTD, 2008)The generation of photons in a three-dimensional rectangular cavity with two moving boundaries is studied by using the multiple scale analysis (MSA). It is shown that the number of photons are enhanced for the cavity whose ... -
The effect of the pairing interaction on the energies of isobar analogue resonances in Sb112-124 and isospin admixture in Sn100-124 isotopes
(IOP Publishing LTD, 2004)In the present study, the effect of the pairing interaction and the isovector correlation between nucleons on the properties of the isobar analogue resonances (IAR) in Sb112-124 isotopes and the isospin admixture in Sn100-124 ... -
Exact solutions in five-dimensional axi-dilaton gravity with Euler-Poincare term
(IOP Publishing LTD, 2007)We examine the effective field equations that are obtained from the axi-dilaton gravity action with a second-order Euler-Poincare term and a cosmological constant in all higher dimensions. We solve these equations for ... -
Fabrication and electrical characterization of flower-like CdO/p-Si heterojunction diode
(IOP Publishing LTD, 2009)The electrical properties of a flower-like CdO/p-Si heterojunction diode have been investigated in the temperature range 80-400 K. The CdO thin film was deposited on p-type Si using the sol-gel spin coating method. The ... -
Fabrication of Ca-Mn-Nb-O compounds and their structural, electrical, magnetic and thermoelectric properties
(IOP Publishing LTD, 2018)CaMn1-xNbxO3-delta (0 <= x <= 1) were synthesized by conventional solid state reaction method. The structural properties were determined by FTIR, Raman, XRD, XAS measurements. The FTIR and Raman modes change by increasing ... -
Fourier transform technique in variational treatment of two-electron parabolic quantum dot
(IOP Publishing LTD, 2009)In this work, we propose an efficient method of reducing the computational effort of variational calculation with a Hylleraas-like trial wavefunction. The method consists of introducing integra transforms for the terms as ... -
Ground state energy of excitons in quantum dot treated variationally via Hylleraas-like wavefunction
(IOP Publishing LTD, 2009)In this work, the effects of quantum confinement on the ground state energy of a correlated electron-hole pair in a spherical and in a disc-like quantum dot have been investigated as a function of quantum dot size. Under ... -
Inverted oscillator
(IOP Publishing LTD, 2006)The inverted harmonic oscillator problem is investigated quantum mechanically. The exact wavefunction for the confined inverted oscillator is obtained and it is shown that the associated energy eigenvalues are discrete, ... -
The investigation of quantum efficiency constituents of InAs/AlSb/GaSb based N structure type-II SL photodetectors with InAlAs interface
(IOP Publishing LTD, 2018)We report on the optical properties of InAs/AlSb/GaSb based Type-II superlattice N-structure with p on n configuration. The detector structure is designed to operate in the mid wavelength infrared range with 50% cut-off ... -
Morphological, optical and electrical properties of CdZnO films prepared by sol-gel method
(IOP Publishing LTD, 2009)CdZnO films were deposited by the sol-gel spin coating method onto glass substrates. ZnO, Cd(0.25)Zn(0.75)O, Cd(0.50)Zn(0.50)O, Cd(0.75)Zn(0.25) O, CdO films were deposited using different rates of cadmium acetate dehydrate ... -
Off-axis vortex in a rotating dipolar Bose-Einstein condensate
(IOP Publishing LTD, 2010)We consider a singly quantized off-axis straight vortex in a rotating dipolar ultracold gas in the Thomas-Fermi (TF) regime. We derive analytic results for small displacements and perform numerical calculations for large ... -
On the donor states in double InxGa1-xN/InyGa1-yN/GaN staggered quantum wells
(IOP Publishing LTD, 2013)We have calculated the binding energies of the donor states, 1s and 2p +/-, with respect to the lowest sub-band energy in a double quantum well composed of wurtzite InGaN staggered quantum wells with GaN barriers. All the ... -
Oscillating and rotating boundary conditions in quantum mechanics
(IOP Publishing LTD, 2011)We consider a particle in an oscillating cavity and in a rotating cavity in the context of moving boundary problems in quantum physics. We use the multiple-scale analysis method to solve the Schrodinger equation subject ...