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Simulation of terahertz generation at semiconductor surfaces
Abstract
A three-dimensional semiclassical Monte Carlo model is presented to describe fast carrier dynamics in semiconductors after photoexcitation. Far-field terahertz (THz) radiation patterns are calculated for both InAs and GaAs with, and without, application of external magnetic fields. This analysis distinguishes between surface depletion field and photo-Dember mechanisms for generating THz radiation. The theoretical model reproduces experimental data from GaAs and InAs, and demonstrates that a magnetic field enhances THz emission by rotating the emitting dipole with respect to the sample surface, leading to an increased coupling of radiation through the surface.
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Cited by
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
Kavokin, A. V., Baumberg, J. J., Malpuech, G., & Laussy, F. P. (2017) · doi:10.1093/oso/9780198782995.001.0001 · Cited by 326
Ultrafast photocurrents at the surface of the three-dimensional topological insulator Bi2Se3
Braun, L., Mussler, G., Hruban, A., Konczykowski, M., Schumann, T., Wolf, M., Münzenberg, M., Perfetti, L., & Kampfrath, T. (2016) · Nature Communications · doi:10.1038/ncomms13259 · Cited by 236
Terahertz radiation from InAs induced by carrier diffusion and drift
Liu, K., Xu, J., Yuan, T., & Zhang, X.-C. (2006) · Physical Review B · doi:10.1103/physrevb.73.155330 · Cited by 181
THz emitters based on the photo-Dember effect
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Metadata
- Authors
- Johnston, M. B., Whittaker, D. M., Corchia, A., Davies, A. G., & Linfield, E. H.
- Venue
- Physical Review B
- Publisher
- American Physical Society (APS)
- Published
- 2002-03-18
- Volume
- 65
- Issue
- 16
- ISSN
- 0163-1829 (ISSN-L)
- 1095-3795
- OpenAlex
- W2120821764
- Cited by
- 364
- References
- 0
- FWCI
- 18.93
- Type
- journal article
- Language
- en
- Open access
- closed
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- Johnston, M. B., Whittaker, D. M., Corchia, A., Davies, A. G., & Linfield, E. H. (2002). Simulation of terahertz generation at semiconductor surfaces. Physical Review B. https://doi.org/10.1103/physrevb.65.165301
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