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Journal Articles Optics Letters Year : 2021

Postfilament supercontinuum on 100 m path in air

Aurélien Houard


Pulses at 744 nm with 90 fs duration, 6 mJ energy, and a weakly divergent wavefront propagate for more than 100 m and generate a filament followed by an unprecedently long high intensity (≥1TW/cm2) light channel. Over a 20 m long sub-section of this channel, the pulse energy is transferred continuously to the infrared wing, forming spectral humps that extend up to 850 nm. From 3D+time carrier-resolved simulations of 100 m pulse propagation, we show that spectral humps indicate the formation of a train of femtosecond pulses appearing at a predictable position in the propagation path.
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Dates and versions

hal-03151353 , version 1 (24-02-2021)



Olga Kosareva, Nikolay Panov, Daniil Shipilo, Daria Mokrousova, Irina Nikolaeva, et al.. Postfilament supercontinuum on 100 m path in air. Optics Letters, 2021, 46 (5), pp.1125. ⟨10.1364/OL.416224⟩. ⟨hal-03151353⟩
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