Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1547762 | Physica E: Low-dimensional Systems and Nanostructures | 2007 | 4 Pages |
Abstract
Four-wave mixing (FWM) technique is used to study the phonon induced dephasing of the excitons in CdTe self-assembled quantum dots. The FWM signals show two different decay structures with fast and slow decay components, indicating a non-Lorentzian line-shape with a zero-phonon line and a broadband from exciton–acoustic phonon interaction in the spectral region. The dephasing of the zero-phonon line and the sideband components both show non-linear characteristics with respect to temperature. The experimental data are reproduced well by a theoretical model taking into account the carrier–acoustic phonon coupling.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
T. Kishimoto, F. Minami, S. Kuroda, K. Takita,