Bright, Tuneable and Compact Source of Few-Femtosecond Pulses in the Deep Ultraviolet

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Abstract

Tuneable ultrashort pulses in the vacuum ultraviolet (VUV, 100-200 nm) and deep ultraviolet (DUV, 200-300 nm) are a vital tool for next-generation ultrafast spectroscopy, technology, and medicine. Resonant dispersive wave (RDW) emission in gas-filled hollow-core waveguides is uniquely placed to fulfill this requirement, delivering continuously tuneable VUV and DUV laser pulses with high efficiency, few-femtosecond duration, and near-perfect beam quality [1] , [2]. Ultraviolet RDW emission in small-core anti-resonant fibres at low pulse energy and high repetition rate can generate Watt-level average powers [1]. However, this approach requires highly specialised waveguides, suffers from guidance resonances which impede fully continuous tuneability and VUV generation, and is ultimately limited in average power due to plasma build-up effects which cap the pulse repetition rate [3]. At much higher pulse energy, simple large-core hollow capillary fibre (HCF) can be used for RDW emission [2] , but this has so far only been demonstrated using large research-grade ultrafast laser amplifiers.

Original languageEnglish
Title of host publication2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
PublisherIEEE
ISBN (Electronic)9781665418768
DOIs
Publication statusPublished - 30 Sep 2021
Event2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference - Munich, Germany
Duration: 21 Jun 202125 Jun 2021

Conference

Conference2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
Abbreviated titleCLEO/Europe-EQEC 2021
Country/TerritoryGermany
CityMunich
Period21/06/2125/06/21

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

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