Comment on "single-mode spontaneous emission from a single quantum dot in a three-dimensional microcavity".
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Comment↗
Biomedical subjects
J-M Gérard
Publications and source records attributed to J-M Gérard.
Optically driven spin memory in n-doped InAs-GaAs quantum dots.
We show that the spin state of the resident electron in an n-doped self-assembled InAs-GaAs quantum dot can be written and read using nonresonant, circularly polarized optical pumping. A simple theoretical model is presented and accounts for the remarkable dynamics producing counterpolarized photoluminescence.
Journal Article↗
Long polaron lifetime in InAs/GaAs self-assembled quantum dots.
We have investigated the polaron dynamics in n-doped InAs/GaAs self-assembled quantum dots by pump-probe midinfrared spectroscopy. A long T1 polaron decay time is measured at both low temperature and room temperature, with values around 70 and 37 ps, respectively. The decay time decreases for energies closer to the optical phonon energy. The relaxation is explained by the strong coupling for the electron-phonon interaction and by the finite lifetime of the optical phonons. We show that, even for a large detuning of 19 meV from the LO photon energy in GaAs, the carrier relaxation remains phonon assisted.
Journal Article↗