Apparatus for soft x-ray table-top high harmonic generation

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Title: Apparatus for soft x-ray table-top high harmonic generation
Authors: Johnson, AS
Wood, D
Austin, DR
Brahms, C
Gregory, A
Holzner, KB
Jarosch, S
Larsen, EW
Parker, S
Struber, C
Ye, P
Tisch, JWG
Marangos, JP
Item Type: Journal Article
Abstract: There has been considerable recent interest in tabletop soft X-ray attosecond sources enabled by the new generation of intense, few-cycle laser sources at operating wavelengths longer than 800 nm. In our recent work [Johnson et al., Sci. Adv. 4(5), eaar3761 (2018)], we have demonstrated a new regime for the generation of X-ray attosecond pulses in the water window (284-540 eV) by high-harmonic generation, which resulted in soft X-ray fluxes of ≈109 photons/s and a maximum photon energy of 600 eV, an order of magnitude and 50 eV higher, respectively, than previously attained with few-cycle drivers. Here we present the key elements of our apparatus for the generation and detection of soft X-ray high harmonic radiation in the water window. Of critical importance is a differentially pumped gas target capable of supporting the multi-atmospheric pressures required to phase-match the high energy emission while strongly constraining the gas density, suppressing the effects of ionization and absorption outside the interaction region.
Issue Date: 1-Aug-2018
Date of Acceptance: 1-Jul-2018
URI: http://hdl.handle.net/10044/1/67552
DOI: https://dx.doi.org/10.1063/1.5041498
ISSN: 0034-6748
Publisher: AIP Publishing
Journal / Book Title: Review of Scientific Instruments
Volume: 89
Issue: 8
Copyright Statement: © 2018 Author(s). Published by AIP Publishing.
Keywords: Science & Technology
Technology
Physical Sciences
Instruments & Instrumentation
Physics, Applied
Physics
GAS-FLOW
SPECTROSCOPY
PULSES
VACUUM
TUBES
Science & Technology
Technology
Physical Sciences
Instruments & Instrumentation
Physics, Applied
Physics
GAS-FLOW
SPECTROSCOPY
PULSES
VACUUM
TUBES
09 Engineering
02 Physical Sciences
03 Chemical Sciences
Applied Physics
Publication Status: Published
Article Number: ARTN 083110
Online Publication Date: 2018-08-21
Appears in Collections:Quantum Optics and Laser Science
Physics
Faculty of Natural Sciences



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