Abstract
The coherent acoustic phonons in phototypical InAs and CdSe semiconductor quantum dot systems are examined. The observed acoustic modes are confined vibrations resulting from the effect of size. Direct time domain observation indicated that the coupling is significant in InAs, and that the substantial motion of the acoustic wavepacket which takes place on the excited state strongly suggests that coupling to such modes can facilitate relaxation routes. The coupling strength is stronger in InAs compared to CdSe, which is consistent with the material parameters.
| Original language | English |
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| Pages | 165-166 |
| Number of pages | 2 |
| State | Published - 1999 |
| Externally published | Yes |
| Event | Proceedings of the 1999 Quantum Electronics and Laser Science Conference (QELS '99) - Baltimore, MD, USA Duration: 23 May 1999 → 28 May 1999 |
Conference
| Conference | Proceedings of the 1999 Quantum Electronics and Laser Science Conference (QELS '99) |
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| City | Baltimore, MD, USA |
| Period | 23/05/99 → 28/05/99 |