Zobrazeno 1 - 10
of 181
pro vyhledávání: '"Bernardot, F."'
The spin interaction of a hole confined in a quantum dot with the surrounding nuclei is described in terms of an effective magnetic field. We show that, in contrast to the Fermi contact hyperfine interaction for conduction electrons, the dipole-dipol
Externí odkaz:
http://arxiv.org/abs/0903.3874
Autor:
Eble, B., Testelin, C., Desfonds, P., Bernardot, F., Balocchi, A., Amand, T., Miard, A., Lemaitre, A., Marie, X., Chamarro, M.
We have measured the carrier spin dynamics in p-doped InAs/GaAs quantum dots by pump-probe photo-induced circular dichroism and time-resolved photoluminescence experiments. We show that the hole spin dephasing is controlled by the hyperfine interacti
Externí odkaz:
http://arxiv.org/abs/0807.0968
The creation of free excitons by absorption of circularly polarized photons, and their subsequent fast capture by donors, is at the origin of the spin polarization of donor-bound electrons. The sign of the electronic spin polarization at low density
Externí odkaz:
http://arxiv.org/abs/0801.1457
We have studied the coherent spin dynamics in an oblique magnetic field of electrons localized on donors and placed in the middle of a single CdTe quantum well, by using a time-resolved optical technique: the photo-induced Faraday rotation. We showed
Externí odkaz:
http://arxiv.org/abs/0712.0559
Photoinduced circular dichroism experiments in an oblique magnetic field allow measurements of Larmor precession frequencies, and so give a precise determination of the electron Lande g factor and its anisotropy in self-assembled InAs/GaAs quantum do
Externí odkaz:
http://arxiv.org/abs/0705.2295
Autor:
Tribollet, J., Aubry, E., Karczewski, G., Sermage, B., Bernardot, F., Testelin, C., Chamarro, M.
We present easily reproducible experimental conditions giving long electron spin relaxation and dephasing times at low temperature in a quantum well. The proposed system consists in an electron localized by a donor potential, and immerged in a quantu
Externí odkaz:
http://arxiv.org/abs/cond-mat/0610068
Publikováno v:
In Optical Materials April 2018 78:126-131
We show that the so-called "trion line" in the absorption spectrum of doped quantum wells, comes from a singular many-body object, intrinsically wide in energy: the photocreated virtual exciton dressed by Coulomb and Pauli interactions with the well
Externí odkaz:
http://arxiv.org/abs/cond-mat/0409395
Power density and temperature effects on the photoluminescence spectra of InAlAs/GaAlAs quantum dots
Autor:
Ben Daly, A., Riahi, H., Bernardot, F., Barisien, T., Galopin, E., Lemaître, A., Maaref, M.A., Testelin, C.
Publikováno v:
In Superlattices and Microstructures April 2017 104:321-330