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. 2023 Jul 31;31(16):26854-26864.
doi: 10.1364/OE.494879.

Direct temporal characterization of sub-3-fs deep UV pulses generated by resonant dispersive wave emission

M Reduzzi, M Pini, L Mai, F Cappenberg, L Colaizzi, F Vismarra, A Crego, M Lucchini, C Brahms, J C Travers, R Borrego-Varillas, M Nisoli
Free article

Direct temporal characterization of sub-3-fs deep UV pulses generated by resonant dispersive wave emission

M Reduzzi et al. Opt Express. .
Free article

Erratum in

Abstract

We report on the complete temporal characterization of ultrashort pulses, generated by resonant dispersive wave emission in gas-filled hollow-capillary fibers, with energy in the microjoule range and continuously tunable from the deep-ultraviolet to the ultraviolet. Temporal characterization of such ultrabroad pulses, particularly challenging in this spectral region, was performed using an all-in-vacuum setup for self-diffraction frequency resolved optical gating (SD-FROG). Sub-3-fs pulses were measured, tunable from 250 nm to 350 nm, with a minimum pulse duration of 2.4 ± 0.1 fs.

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