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- W4293173380 abstract "Abstract Infrared femtosecond optical vortices open up many new research fields, such as optical micro–nano manipulation, time-resolved nonlocal spectroscopy in solids, vortex secondary radiation and particle generations. In this article, we demonstrate a femtosecond optical vortex laser system based on a two-stage optical parametric amplifier. In our experiment, 1.45 μm vortex signal pulses with energy of 190 μJ and 1.8 μm vortex idler pulses with energy of 158 μJ have been obtained, and the pulse durations are 51 and 48 fs, respectively. Both the energy fluctuations of the signal and idler pulses are less than 0.5% (root mean square), and the spectral fluctuations are less than 1.5% within 1 hour. This type of highly stable femtosecond optical vortex laser has a wide range of applications for vortex strong-field physics." @default.
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- W4293173380 date "2022-01-01" @default.
- W4293173380 modified "2023-10-17" @default.
- W4293173380 title "Femtosecond infrared optical vortex lasers based on optical parametric amplification" @default.
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- W4293173380 doi "https://doi.org/10.1017/hpl.2022.20" @default.
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