25
IRUS Total
Downloads

High-flux soft x-ray harmonic generation from ionization-shaped few-cycle laser pulses

File Description SizeFormat 
eaar3761.full.pdfPublished version687.8 kBAdobe PDFView/Open
Title: High-flux soft x-ray harmonic generation from ionization-shaped few-cycle laser pulses
Authors: Johnson, A
Austin, D
Wood, D
Brahms, M
Gregory, A
Holzner, K
Jarosch, S
Larsen, E
Parker, S
Struber, C
Ye, P
Tisch, J
Marangos, JP
Item Type: Journal Article
Abstract: Laser driven high harmonic generation provides the only demonstrated route to generate stable, tabletop attosecond X-ray pulses, but with low flux compared to other X-ray tech- nologies. Here we show that higher photon energies and flux can be obtained from high harmonic generation by using higher laser intensities than are typical, strongly ionizing the medium and creating plasma which reshapes the driving laser field. We obtain high harmon- ics capable of supporting attosecond pulses out to photon energies of 600 eV, and a photon flux inside the water window (284 eV to 540 eV) ten times higher than previous attosecond sources. We demonstrate that operating in this regime is key for attosecond pulse generation in the X-ray range, and will become increasingly important as harmonic generation moves to even longer wavelength driving fields.
Issue Date: 11-May-2018
Date of Acceptance: 27-Mar-2018
URI: http://hdl.handle.net/10044/1/58455
DOI: 10.1126/sciadv.aar3761
ISSN: 2375-2548
Publisher: American Association for the Advancement of Science
Journal / Book Title: Science Advances
Volume: 4
Issue: 5
Copyright Statement: © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY). This is an open-access article distributed under the terms of the Creative Commons Attribution license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Sponsor/Funder: Engineering & Physical Science Research Council (EPSRC)
Commission of the European Communities
Engineering & Physical Science Research Council (EPSRC)
Funder's Grant Number: EP/I032517/1
317232
EP/N018680/1
Keywords: Science & Technology
Multidisciplinary Sciences
Science & Technology - Other Topics
EXTREME-ULTRAVIOLET
ELECTRON DYNAMICS
ATTOSECOND PULSES
PROPAGATION
ABSORPTION
DRIVEN
FIELD
INTERFEROMETRY
SPECTROSCOPY
STREAKING
Publication Status: Published
Article Number: ARTN eaar3761
Appears in Collections:Quantum Optics and Laser Science
Physics
Faculty of Natural Sciences