Direct characterization of tuneable few-femtosecond dispersive-wave pulses in the deep UV

Christian Brahms, Dane R. Austin, Francesco Tani, Allan S. Johnson, Douglas Garratt, John C. Travers, John W. G. Tisch, Philip St. J. Russell, Jon P. Marangos

Research output: Contribution to journalArticle

7 Citations (Scopus)
9 Downloads (Pure)

Abstract

Dispersive wave emission (DWE) in gas-filled hollow-core dielectric waveguides is a promising source of tuneable coherent and broadband radiation, but so far the generation of few-femtosecond pulses using this technique has not been demonstrated. Using in-vacuum frequency-resolved optical gating, we directly characterize tuneable 3 fs pulses in the deep ultraviolet generated via DWE. Through numerical simulations, we identify that the use of a pressure gradient in the waveguide is critical for the generation of short pulses.
Original languageEnglish
Pages (from-to)731-734
Number of pages4
JournalOptics Letters
Volume44
Issue number4
Early online date4 Feb 2019
DOIs
Publication statusPublished - 15 Feb 2019

Fingerprint Dive into the research topics of 'Direct characterization of tuneable few-femtosecond dispersive-wave pulses in the deep UV'. Together they form a unique fingerprint.

Cite this