Abstract
The seventh harmonic generation by tunable mid-infrared femtosecond pulses filamentation in air is observed first time. Pumped by a focused mid-infrared pulses, which pulse duration is ∼50 fs and wavelength is tunable from 1300 to 2000 nm, the tunable region of the fifth and seventh harmonic generation can cover the near ultraviolet region from 180 to 400 nm.
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Original Russian Text © Astro, Ltd., 2009.
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Zhang, C., Wang, J., Chen, X. et al. Tunable ultraviolet source from fifth and seventh harmonic generated by mid-infrared pulses filamentation in air. Laser Phys. 19, 1793–1795 (2009). https://doi.org/10.1134/S1054660X09150493
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DOI: https://doi.org/10.1134/S1054660X09150493