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Coherent Acoustic Phonons in a Semiconductor Quantum Dot
Abstract
Coherent acoustic phonons in PbS quantum dots are observed using femtosecond optical techniques. This is the first observation of coherent acoustic phonons in a semiconductor quantum dot; the phonons are generated through the deformation-potential coupling to the quantum-dot exciton. The acoustic modes are weakly damped, and we also find extremely weak coupling ( $S\ensuremath{\sim}0.01$) to the optical modes. These conclusions have important consequences for the vibronic nature of the exciton transition in the quantum dot and its dephasing.
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Cited by
Gouadec, G., & Colomban, P. (2007) · Progress in Crystal Growth and Characterization of Materials · doi:10.1016/j.pcrysgrow.2007.01.001 · Cited by 1,050
Kambhampati, P. (2011) · The Journal of Physical Chemistry C · doi:10.1021/jp2058673 · Cited by 391
Jiang, S., Yang, J., Zhu, L., Xie, J., Guo, W., Zhao, E., Chen, C., Wang, T., Su, F., Zhang, Y., et al. (2022) · Nano Research · doi:10.1007/s12274-022-4168-y · Cited by 10
Metadata
- Authors
- Krauss, T. D., & Wise, F. W.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 1997-12-22
- Volume
- 79
- Issue
- 25
- Pages
- 5102-5105
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1999183149
- Cited by
- 241
- References
- 0
- FWCI
- 4.26
- Type
- journal article
- Language
- en
- Open access
- closed
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- Krauss, T. D., & Wise, F. W. (1997). Coherent Acoustic Phonons in a Semiconductor Quantum Dot. Physical Review Letters. https://doi.org/10.1103/physrevlett.79.5102
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
