Abstract
The ultrafast dynamics of carriers in low-dimensional semiconductors is governed by inter- and intrasubband scattering processes resulting from carrier-carrier and carrier-phonon interactions. This paper reports on femtosecond studies of electron dynamics occurring after optical excitation to a higher conduction subband in GaInAs/ AlInAs quantum wells. Results demonstrate a lifetime of the n = 2 conduction subband of 1 ps and give the first direct insight into the relatively slow electron thermalization after intersubband excitation.
| Original language | English (US) |
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| Pages | 176-177 |
| Number of pages | 2 |
| State | Published - 1996 |
| Externally published | Yes |
| Event | Proceedings of the 1996 6th Quantum Electronics and Laser Science Conference, QELS - Anaheim, CA, USA Duration: Jun 2 1996 → Jun 7 1996 |
Conference
| Conference | Proceedings of the 1996 6th Quantum Electronics and Laser Science Conference, QELS |
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| City | Anaheim, CA, USA |
| Period | 6/2/96 → 6/7/96 |
ASJC Scopus subject areas
- Physics and Astronomy(all)