Work

Resonant dispersive wave emission: a route toward few-cycle, tunable strong-field drivers in the visible

Year: 2026

Type: preprint

Abstract: Intense ultrafast lasers are the backbone of strong-field physics and enable table-top scale applications of coherent high-photon energy radiation through high-harmonic generation (HHG). Using short-wavelength drivers in HHG promises highly efficient conversion into the extreme ultraviolet, but short pulse durations are essential to this approach. We generate multi-GW peak power, sub-10 fs pulses in the visible with broad spectral tunability (220--752 nm) by harnessing soliton dynamics in large-core, gas-filled capillary fibers for high-energy resonant dispersive wave emission. This establishes the potential of resonant dispersive waves as a new class of driving lasers for HHG and strong-field physics in addition to widespread applications in ultrafast spectroscopy.

Source: arXiv (Cornell University)

DOI: 10.48550/arxiv.2610.15108

Authors: Gebhardt, Martin, Nordmann, Joleik, Kotsina, Nikoleta, Heynck, Michael, Grigorova, Teodora, Brahms, Christian, Travers, John C.

Institution: Heriot-Watt University

Language: English

Topic: Laser-Matter Interactions and Applications

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: UK Research and Innovation, Royal Academy of Engineering, European Commission, HORIZON EUROPE Marie Sklodowska-Curie Actions

OpenAlex ID: W7221790350

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