- AutorIn
- Snigdhatanu Acharya
- Sumedha Chouthe
- Heinrich Graener
- Tammo Böntgen
- Chris Sturm
- Rüdiger Schmidt-Grund
- Marius Grundmann
- Gerhard Seifert
- Titel
- Ultrafast dynamics of the dielectric functions of ZnO and BaTiO3 thin films after intense femtosecond laser excitation
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:15-qucosa2-312318
- Quellenangabe
- Journal of Applied Physics Erscheinungsort: Melville
Verlag: American Institute of Physics
Erscheinungsjahr: 2014
Jahrgang: 115
Heft: 5
ISSN: 0021-8979
E-ISSN: 1089-7550
Artikelnummer: 053508 - Erstveröffentlichung
- 2014
- Abstract (EN)
- The ultrafast carrier dynamics of epitaxial ZnO and BaTiO3 thin films after intense excitation at 3.10 eV and 4.66 eV photon energy has been studied by femtosecond absorption spectroscopy. Modelling the transient transmission changes on the basis of spectroscopic ellipsometry data and pertinent equilibrium model dielectric functions extended by additional terms for the effects at high carrier density (P-band luminescence and stimulated emission from electron-hole-plasma), a self-consistent parameterized description was obtained for both materials. Excited carrier lifetimes in the range of ≈2 to ≈60 ps and long-lived thermal effects after several hundred ps have been identified in both materials. These findings form a reliable basis to quantitatively describe future femtosecond studies on ZnO/BaTiO3 heterolayer systems.
- Andere Ausgabe
- Link zur Originalpublikation in Journal of Applied Physics
Link: http://dx.doi.org/10.1063/1.4864017 - Freie Schlagwörter (EN)
- Mode locking, Zinc oxide films, Excitons
- Klassifikation (DDC)
- 530
- Verlag
- American Institute of Physics, Melville
- Publizierende Institution
- Universität Leipzig, Leipzig
- Sonstige beteiligte Institution
- Martin-Luther-Universität Halle-Wittenberg, Halle
- Version / Begutachtungsstatus
- publizierte Version / Verlagsversion
- URN Qucosa
- urn:nbn:de:bsz:15-qucosa2-312318
- Veröffentlichungsdatum Qucosa
- 14.08.2018
- Dokumenttyp
- Artikel
- Sprache des Dokumentes
- Englisch