Journal
OPTICS EXPRESS
Volume 26, Issue 24, Pages 31150-31159Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.26.031150
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Funding
- National Priorities Research Program from the Qatar National Research Fund (member of The Qatar Foundation) [NPRP9-329-1-067]
- H2020 Laserlab-Europe [EC-GA 654148]
- H2020 MIR-BOSE [EC-GA 737017]
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We theoretically study the generation of terahertz (THz) radiation by two-color filamentation of ultrashort laser pulses with different wavelengths. We consider wavelengths in the range from 0.6 to 10.6 mu m, thus covering the whole range of existing and future powerful laser sources in the near, mid and far-infrared. We show how different parameters of two-color filaments and generated THz pulses depend on the laser wavelength. We demonstrate that there is an optimal laser wavelength for two-color filamentation that provides the highest THz conversion efficiency and results in generation of extremely intense single cycle THz fields. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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