Browsing by Keywords "Semiconductor quantum wires"
Now showing items 114 of 14

Characteristic equations for the lasing Modes of infinite periodic chain of quantum wires
(2008)In this paper, we study the lasing modes of a periodic open optical resonator. The resonator is an infinite chain of active circular cylindrical quantum wires standing in tree space. Characteristic equations for the ... 
Confined optical phonon effects on the band gap renormalization in quantum wire structures
(Elsevier Science, 1999)We consider the different approximations for the bandgap renormalization (BGR) within the random phase approximation (RPA), the quasistatic limit and the plasmonpole approximation, and compare with the full result. We ... 
Coulomb drag effect in parallel cylindrical quantum wires
(Pergamon Press, 1996)We study the Coulomb drag rate for electrons in two parallel quantum wires. The doublequantum wire structure is modeled for a GaAs material with cylindrical wires having infinite potential barriers. The momentum transfer ... 
Dynamical screening effects in hotelectron scattering from electronhole plasma and LOphonon modes in quantum wires
(Elsevier, 1996)We present a fully dynamical and finite temperature study of the hotelectron momentum relaxation rate and the power loss in a coupled system of electronhole plasma and bulk LOphonons in a quantum wire structure. ... 
Exchangecorrelation effects in the impuritylimited mobility of GaAs quantum wires
(Sci Tech Res Counc Turkey, Ankara, Turkey, 1999)We study the manybody effects described by the localfield corrections on the mobility of quasione dimensional electron systems. The low temperature mobility due to remoteimpurity doping and interfaceroughness scattering ... 
HartreeFock approximation of bipolaron state in quantum dots and wires
(Springer, 2010)The bipolaronic ground state of two electrons in a spherical quantum dot or a quantum wire with parabolic boundaries is studied in the strong electronphonon coupling regime. We introduce a variational wave function that ... 
Lasing modes of infinite periodic chain of quantum wires
(2009)In this paper, we study the scattering and eigenvalue problems for a periodic open optical resonator that is an infinite chain of active circular cylindrical quantum wires standing in free space. The scattering problem is ... 
Nonradiative energy transfer in colloidal CdSe nanoplatelet films
(Royal Society of Chemistry, 2015)Nonradiative energy transfer (NRET) has been extensively studied in colloidal nanocrystal (quantum dots) and nanorod (quantum wires) assemblies. In this work, we present the first account of spectroscopic evidence of NRET ... 
Operation of a novel hot electron vertical cavity surface emitting laser
(SPIE  The International Society for Optical Engineering, 199801)The hot Electron Light Emission and Lasing in Semiconductor Heterostructures devices (HELLISH1) is novel surface emitter consisting of a GaAs quantum well, within the depletion region, on the n side of Ga 1xAlxAs p n ... 
Phonon confinement and screening effects on the polaron energy in quantum wires
(Institute of Physics Publishing Ltd., 1995)We study the contribution of confined phonons to the polaron energy in quantumwell wires. We use a dispersionless, macroscopic continuum model to describe the phonon confinement in quantum wires of square cross section. ... 
Raman scattering from confined phonons in GaAs/AlGaAs quantum wires
(Academic Press, 1998)We report on photoluminescence and Raman scattering performed at low temperature (T = 10 K) on GaAs/Al 0.3Ga 0.7As quantumwell wires with effective wire widths of L = 100.0 and 10.9 nm prepared by molecular beam epitaxial ... 
Shortrange correlations in coupled quantumwire systems
(2002)We study the contact values of the interwire paircorrelation function in electronelectron and electronhole doublewire systems. For this purpose the ladder approximation as generalized to multicomponent systems is used. ... 
Spin correlations in a quasionedimensional electron gas
(Elsevier BV, 1996)We study the spin correlations in a quasionedimensional electron gas within the selfconsistentfield approximation (SCFA). Electrons confined in a parabolic potential restricted to have free motion in one space dimension, ... 
Strong coupling characterisation of quasi1D polarons in cylindrical QWwires
(Pergamon Press, 1996)We retrieve, within the strongcoupling theory, the quasione dimensional analog of the standard optical polaron relevant to a cylindrical quantum well wire. Under the assumption of perfect confinement the ground state ...