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Direct Subpicosecond Measurement of Carrier Mobility of Photoexcited Electrons in Gallium Arsenide
Abstract
The mobility of hot electrons in gallium arsenide has been measured with subpicosecond time resolution, following injection by 2-eV femtosecond pulses. The mobility immediately after injection was measured to be less than 500 ${\mathrm{cm}}^{2}$/V.s, indicating efficient electron transfer into the satellite $L$ valleys. The electron mobility then rose to a quasiequilibrium value of 4200 ${\mathrm{cm}}^{2}$/V.s, limited by electron-hole scattering. The rise time was observed to be between 1.8 and 3.2 ps depending on injected carrier density.
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Cited by
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Terahertz spectroscopy and imaging - Modern techniques and applications
Jepsen, P. U., Cooke, D. G., & Koch, M. (2011) · Laser & Photonics Reviews · doi:10.1002/lpor.201000011 · Cited by 2,091
Price, M. B., Butkus, J., Jellicoe, T. C., Sadhanala, A., Briane, A., Halpert, J. E., Broch, K., Hodgkiss, J. M., Friend, R. H., & Deschler, F. (2015) · Nature Communications · doi:10.1038/ncomms9420 · Cited by 704
A Review of the Terahertz Conductivity of Bulk and Nano-Materials
Lloyd-Hughes, J., & Jeon, T.-I. (2012) · Journal of Infrared, Millimeter, and Terahertz Waves · doi:10.1007/s10762-012-9905-y · Cited by 503
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Gu, P., Tani, M., Kono, S., Sakai, K., & Zhang, X.-C. (2002) · Journal of Applied Physics · doi:10.1063/1.1465507 · Cited by 326
Metadata
- Authors
- Nuss, M. C., Auston, D. H., & Capasso, F.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 1987-06-01
- Volume
- 58
- Issue
- 22
- Pages
- 2355-2358
- ISSN
- 0031-9007 (ISSN-L)
- OpenAlex
- W2022852507
- Cited by
- 202
- References
- 0
- FWCI
- 9.11
- Type
- journal article
- Language
- en
- Open access
- closed
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- Nuss, M. C., Auston, D. H., & Capasso, F. (1987). Direct Subpicosecond Measurement of Carrier Mobility of Photoexcited Electrons in Gallium Arsenide. Physical Review Letters. https://doi.org/10.1103/physrevlett.58.2355
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