Year: 2009
Type: article
Abstract: For a single semiconductor quantum dot embedded in a microcavity, we theoretically and experimentally investigate phonon-assisted transitions between excitons and the cavity mode. Within the framework of the independent boson model we find that such transitions can be very efficient, even for relatively large exciton-cavity detunings of several millielectron volts. Furthermore, we predict a strong detuning asymmetry for the exciton lifetime that vanishes for elevated lattice temperature. Our findings are corroborated by experiment, which turns out to be in good quantitative and qualitative agreement with theory.
Source: Physical Review B
Authors: Ulrich Hohenester, Arne Laucht, Michael Kaniber, Norman Hauke, Andre Neumann, Abbas Mohtashami, Marek Seliger, Max Bichler, Jonathan J. Finley
Institutions: University of Graz, Technical University of Munich
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1986753168