Journal article
Coherent Interaction of Three-Dimensionally Confined Electron-Hole Pairs with LO-Phonons
In
Ipps Physica Status Solidi (b)
—
1997, Volume 204, Issue 1, pp. 42-44
Abstract
The spectrally resolved FWM signal of CdSe quantum dots with sizes below the bulk excitonic Bohr radius has been studied as a function of temperature and excitation intensity and compared with bulk CdSe. A clear oscillation with a period of 163fs (approximate to 25 meV) is found in the transient FWM signal and attributed to a coherent coupling of confined electron-hole pairs with LO-phonons.
Two side bands are observed in the spectrum 25 meV below and above the excitonic resonance. The strong coupling to LO-phonons is observed even at excitation densities around 1 x 10(16) cm(-3) which is close to the bulk value of the Mott density.
| Language: | English |
|---|---|
| Publisher: | WILEY-VCH Verlag |
| Year: | 1997 |
| Pages: | 42-44 |
| ISSN: | 15213951 and 03701972 |
| Types: | Journal article |
| DOI: | 10.1002/1521-3951(199711)204:1<42::AID-PSSB42>3.0.CO;2-P |
