96 citations · 321 across the 8 of their papers we have counts for
8 papers
Tuning optical properties of Ge nanocrystals by Si shell
M. O. Nestoklon, A. N. Poddubny, P. Voisin +1
We present a theoretical study of Ge-core/Si-shell nanocrystals in a wide bandgap matrix and compare the results with experimental data obtained from the samples prepared by co-spu…
Optical properties of potential-inserted quantum wells in the near infrared and Terahertz ranges
F. Raouafi, R. Samti, R. Benchamekh +4
We propose an engineering of the optical properties of GaAs/AlGaAs quantum wells using AlAs and InAs monolayer insertions. A quantitative study of the effects of the monolayer posi…
Microscopic Electronic Wavefunction and interactions between quasi particles in Empirical Tight-Binding Theory
R. Benchamekh, F. Raouafi, J. Even +3
A procedure to obtain single-electron wavefunctions within the tight-binding formalism is proposed. It is based on linear combinations of Slater-type orbitals whose screening coeff…
Optical nonlinearity for few-photon pulses on a quantum dot-pillar cavity device
Vivien Loo, Christophe Arnold, Olivier Gazzano +6
Giant optical nonlinearity is observed under both continuous-wave and pulsed excitation in a deterministically-coupled quantum dot-micropillar system, in a pronounced strong-coupli…
STM images of sub-surface Mn atoms in GaAs: evidence of hybridization of surface and impurity states
J. -M. Jancu, J. -Ch. Girard, M. Nestoklon +3
We prove that scanning tunneling microscopy (STM) images of sub-surface Mn atoms in GaAs are formed by hybridization of the impurity state with intrinsic surface states. They canno…
Optical alignment and polarization conversion of neutral exciton spin in individual InAs/GaAs quantum dots
K. Kowalik, O. Krebs, A. Lemaître +2
We investigate exciton spin memory in individual InAs/GaAs self-assembled quantum dots via optical alignment and conversion of exciton polarization in a magnetic field. Quasiresona…