Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 3761-3763 |
| Seitenumfang | 3 |
| Fachzeitschrift | Applied Physics Letters |
| Jahrgang | 71 |
| Ausgabenummer | 26 |
| Publikationsstatus | Veröffentlicht - 29 Dez. 1997 |
| Extern publiziert | Ja |
Abstract
The influence of carrier relaxation on the emission dynamics of a semiconductor microcavity laser is investigated using femtosecond optical excitation. For moderate excitation intensities, the dynamics of the output laser pulse becomes significantly slower when the photon energy of the pump laser is tuned from the quantum well band-gap energy towards higher energies. Theoretical calculations reproduce this trend only if the interaction-induced dephasing of the polarization driven by the pump pulse, the formation, and relaxation of the nonequilibrium carrier distribution as well as the chirp of the excitation pulse are taken into account. Additionally, band-structure effects such as excitation of light holes influence the thermalization dynamics and lead to discontinuities in the general trend.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Physik und Astronomie (sonstige)
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in: Applied Physics Letters, Jahrgang 71, Nr. 26, 29.12.1997, S. 3761-3763.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Influence of carrier relaxation on the dynamics of stimulated emission in microcavity lasers
AU - Hilpert, M.
AU - Klann, H.
AU - Hofmann, M.
AU - Ellmers, C.
AU - Oestreich, Michael
AU - Schneider, H. C.
AU - Jahnke, F.
AU - Koch, Stephan W.
AU - Rühle, Wolfgang W.
AU - Wolf, H. D.
AU - Bernklau, D.
AU - Riechert, H.
PY - 1997/12/29
Y1 - 1997/12/29
N2 - The influence of carrier relaxation on the emission dynamics of a semiconductor microcavity laser is investigated using femtosecond optical excitation. For moderate excitation intensities, the dynamics of the output laser pulse becomes significantly slower when the photon energy of the pump laser is tuned from the quantum well band-gap energy towards higher energies. Theoretical calculations reproduce this trend only if the interaction-induced dephasing of the polarization driven by the pump pulse, the formation, and relaxation of the nonequilibrium carrier distribution as well as the chirp of the excitation pulse are taken into account. Additionally, band-structure effects such as excitation of light holes influence the thermalization dynamics and lead to discontinuities in the general trend.
AB - The influence of carrier relaxation on the emission dynamics of a semiconductor microcavity laser is investigated using femtosecond optical excitation. For moderate excitation intensities, the dynamics of the output laser pulse becomes significantly slower when the photon energy of the pump laser is tuned from the quantum well band-gap energy towards higher energies. Theoretical calculations reproduce this trend only if the interaction-induced dephasing of the polarization driven by the pump pulse, the formation, and relaxation of the nonequilibrium carrier distribution as well as the chirp of the excitation pulse are taken into account. Additionally, band-structure effects such as excitation of light holes influence the thermalization dynamics and lead to discontinuities in the general trend.
UR - http://www.scopus.com/inward/record.url?scp=0031386049&partnerID=8YFLogxK
U2 - 10.1063/1.120498
DO - 10.1063/1.120498
M3 - Article
AN - SCOPUS:0031386049
VL - 71
SP - 3761
EP - 3763
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 26
ER -