Excitons in {311} oriented superlattices: optical anisotropies

Interwell excitons in GaAs superlattices.

Optical properties of GaAs/AlAs superlattices grown on (311)A GaAs surfaces

We present a temperature-dependence photoluminescence of (GaAs)5/(AlAs)5 superlattice grown on (311)A-oriented semi-insulating substrate by molecular beam epitaxy. The temperature dependence reveals an anomalous decrease of the PL width, which is explained in terms of phonon-assisted thermal activation of localized excitons. q 2004 Elsevier Ltd. All rights reserved. PACS: 23.23. þ x; 56.65.Dy

Optical response and excitons in gapped graphene

Bose-Fermi mixtures in 1D optical superlattices

The zero temperature phase diagram of binary boson-fermion mixtures in two-colour superlattices is investigated. The eigenvalue problem associated with the Bose-Fermi-Hubbard Hamiltonian is solved using an exact numerical diagonalization technique, supplemented by an adaptive basis truncation scheme. The physically motivated basis truncation allows to access larger systems in a fully controlled...

Nonlinear optical probe of indirect excitons

A. V. Nalitov,1 M. Vladimirova,2 A. V. Kavokin,3,4 L. V. Butov,5 and N. A. Gippius1,6 1Institut Pascal, PHOTON-N2, Clermont Université, Blaise Pascal University, CNRS, 24 avenue des Landais, 63177 Aubière Cedex, France 2Laboratoire Charles Coulomb, UMR 5221 CNRS/UM2, Université Montpellier 2, Place Eugene Bataillon, 34095 Montpellier Cedex 05, France 3School of Physics and Astronomy, University...