Postfilament supercontinuum on 100 m path in air

O. Kosareva, N. Panov, D. Shipilo, D. Mokrousova, I. Nikolaeva, E. Mitina, A. Koribut, A. Reutov, G. Rizaev, A. Couairon, A. Houard, D. Skryabin, A. Saletskiy, A. Savel’ev, L. Seleznev, A. Ionin, S. L. Chin

Research output: Contribution to journalArticlepeer-review

Abstract

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 (≥ 1 TW/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.

Original languageEnglish
Pages (from-to)1125-1128
Number of pages4
JournalOptics Letters
Volume46
Issue number5
DOIs
Publication statusPublished - 1 Mar 2021

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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