1 Optoelectronics, Department of Photonics Engineering, Technical University of Denmark2 Department of Photonics Engineering, Technical University of Denmark3 Modeling, Department of Photonics Engineering, Technical University of Denmark4 P. N. Lebedev Physical Institute5 Department of Informatics and Mathematical Modeling, Technical University of Denmark
We present a study of carrier capture into quantum dots via emission of longitudinal optical phonons. Two-phonon capture times are found to be of the order of some picoseconds at carrier densities 10^1^7cm^-^3 in situations where single-phonon capture processes are energetically prohibited. The influence of different intermediate carrier states on the two-phonon capture rate is investigated and found to exhibit effects of interference between the different contributions.
Physica E: Low-dimensional Systems and Nanostructures, 2003, Vol 17, Issue 1-4, p. 111-113