bei Google ScholarTitelangaben
Wühr, J. ; Axt, Vollrath Martin ; Kuhn, Tilmann:
Dynamics of two-pair correlations induced by simultaneous excitation of excitonic and band-to-band continuum transitions.
In: Physica Status Solidi B.
Bd. 238
(2003)
Heft 3
.
- S. 556-560.
ISSN 1521-3951
DOI: https://doi.org/10.1002/pssb.200303189
Abstract
The impact of all kinds of two-pair correlations (biexcitons, exciton–exciton scattering states, two free electron–hole pairs) on four-wave-mixing (FWM) signals generated by ultra-short optical pulses that simultaneously excite excitons and free electron–hole pairs is analyzed. Signatures of two-pair correlations are identified by comparing the full theory with mean-field (MF) results. For systems with strong exciton binding two-pair correlations suppress changes of the line width of the excitonic emission that are predicted by the MF theory when the central excitation energy is varied above the band edge. For systems with weakly bound excitons the presence of two-pair correlations leads to an emission in between the exciton and the band edge with a complex line shape which strongly depends on the excitation energy.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Keywords: | two-pair correlations; exciton-exciton continuum correaltions; biexcitons; dynamics controlled trauncation; non-linear optics; ultrafast dynamics; free electron hole pairs; four-wave mixing |
| Institutionen der Universität: | Fakultäten > Fakultät für Mathematik, Physik und Informatik > Physikalisches Institut Fakultäten > Fakultät für Mathematik, Physik und Informatik > Physikalisches Institut > Lehrstuhl Theoretische Physik III > Lehrstuhl Theoretische Physik III - Univ.-Prof. Dr. Martin Axt Fakultäten Fakultäten > Fakultät für Mathematik, Physik und Informatik Fakultäten > Fakultät für Mathematik, Physik und Informatik > Physikalisches Institut > Lehrstuhl Theoretische Physik III |
| Titel an der UBT entstanden: | Nein |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 530 Physik |
| Eingestellt am: | 23 Okt 2017 08:21 |
| Letzte Änderung: | 30 Aug 2022 11:02 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/40102 |