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Coherent Control of THz Wave Generation in Ambient Air
Abstract
Our study of THz wave generation in the pulsed laser induced air plasma with individually controlled phase, polarization, and amplitude of the optical fundamental wave (omega) and its second harmonic (2omega) indicates that the third-order nonlinear optical process mixing the omega and 2omega beams in the ionized plasma is the main mechanism of the efficient THz wave generation. The polarity and the strength of the emitted THz field are completely controlled by the relative phase between the omega and 2omega waves. The measured THz field amplitude is proportional to the pulse energy of the fundamental beam and to the square root of the pulse energy of the second-harmonic beam once the total optical pulse energy exceeds the plasma formation threshold. The optimal THz field is achieved when all waves (omega, 2omega, and THz waves) are at the same polarization in the four-wave-mixing process.
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Leemans, W. P., Geddes, C. G. R., Faure, J., Tóth, C., van Tilborg, J., Schroeder, C. B., Esarey, E., Fubiani, G., Auerbach, D., Marcelis, B., et al. (2003) · Physical Review Letters · doi:10.1103/physrevlett.91.074802 · Cited by 377
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Cited by
Carrier dynamics in semiconductors studied with time-resolved terahertz spectroscopy
Ulbricht, R., Hendry, E., Shan, J., Heinz, T. F., & Bonn, M. (2011) · Reviews of Modern Physics · doi:10.1103/revmodphys.83.543 · Cited by 1,293
Coherent control of terahertz supercontinuum generation in ultrafast laser–gas interactions
Kim, K. Y., Taylor, A. J., Glownia, J. H., & Rodriguez, G. (2008) · Nature Photonics · doi:10.1038/nphoton.2008.153 · Cited by 835
Terahertz emission from ultrafast ionizing air in symmetry-broken laser fields
Kim, K.-Y., Glownia, J. H., Taylor, A. J., & Rodriguez, G. (2007) · Optics Express · doi:10.1364/oe.15.004577 · Cited by 699
Terahertz-Pulse Emission Through Laser Excitation of Surface Plasmons in a Metal Grating
Welsh, G. H., Hunt, N. T., & Wynne, K. (2007) · Physical Review Letters · doi:10.1103/physrevlett.98.026803 · Cited by 122
Phase Retrieval in Terahertz Time-Domain Measurements: a 'how to' Tutorial
Jepsen, P. U. (2019) · Journal of Infrared, Millimeter and Terahertz Waves · doi:10.1007/s10762-019-00578-0 · Cited by 114
Metadata
- Authors
- Xie, X., Dai, J., & Zhang, X.-C.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2006-02-23
- Volume
- 96
- Issue
- 7
- Pages
- 075005-075005
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2014104377
- Cited by
- 681
- References
- 1
- FWCI
- 35.43
- Type
- journal article
- Language
- en
- Open access
- closed
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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).
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