Femtosecond x-ray pulse length characterization at the Linac Coherent Light Source free-electron laser

S. Düsterer, P. Radcliffe, C. Bostedt, J. Bozek, A. L. Cavalieri, R. Coffee, J. T. Costello, D. Cubaynes, L. F. DiMauro, Y. Ding, G. Doumy, F. Grüner, W. Helml, W. Schweinberger, R. Kienberger, A. R. Maier, Marc Messerschmidt, V. Richardson, C. Roedig, T. TschentscherM. Meyer

Research output: Contribution to journalArticle

85 Citations (Scopus)

Abstract

Two-color, single-shot time-of-flight electron spectroscopy of atomic neon was employed at the Linac Coherent Light Source (LCLS) to measure laser-assisted Auger decay in the x-ray regime. This x-ray-optical cross-correlation technique provides a straightforward, non-invasive and online means of determining the duration of femtosecond (>40 fs) x-ray pulses. In combination with a theoretical model of the process based on the softphoton approximation, we were able to obtain the LCLS pulse duration and to extract a mean value of the temporal jitter between the optical pulses from a synchronized Ti-sapphire laser and x-ray pulses from the LCLS. We find that the experimentally determined values are systematically smaller than the length of the electron bunches. Nominal electron pulse durations of 175 and 75 fs, as provided by the LCLS control system, yield x-ray pulse shapes of 120± 20 fs full-width at half-maximum (FWHM) and an upper limit of 40±20 fs FWHM, respectively. Simulations of the free-electron laser agree well with the experimental results.

Original languageEnglish (US)
Article number093024
JournalNew Journal of Physics
Volume13
DOIs
StatePublished - Sep 1 2011
Externally publishedYes

Fingerprint

coherent light
free electron lasers
light sources
pulses
x rays
pulse duration
neon
cross correlation
shot
lasers
electron spectroscopy
sapphire
electrons
color
vibration
decay
approximation
simulation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Düsterer, S., Radcliffe, P., Bostedt, C., Bozek, J., Cavalieri, A. L., Coffee, R., ... Meyer, M. (2011). Femtosecond x-ray pulse length characterization at the Linac Coherent Light Source free-electron laser. New Journal of Physics, 13, [093024]. https://doi.org/10.1088/1367-2630/13/9/093024

Femtosecond x-ray pulse length characterization at the Linac Coherent Light Source free-electron laser. / Düsterer, S.; Radcliffe, P.; Bostedt, C.; Bozek, J.; Cavalieri, A. L.; Coffee, R.; Costello, J. T.; Cubaynes, D.; DiMauro, L. F.; Ding, Y.; Doumy, G.; Grüner, F.; Helml, W.; Schweinberger, W.; Kienberger, R.; Maier, A. R.; Messerschmidt, Marc; Richardson, V.; Roedig, C.; Tschentscher, T.; Meyer, M.

In: New Journal of Physics, Vol. 13, 093024, 01.09.2011.

Research output: Contribution to journalArticle

Düsterer, S, Radcliffe, P, Bostedt, C, Bozek, J, Cavalieri, AL, Coffee, R, Costello, JT, Cubaynes, D, DiMauro, LF, Ding, Y, Doumy, G, Grüner, F, Helml, W, Schweinberger, W, Kienberger, R, Maier, AR, Messerschmidt, M, Richardson, V, Roedig, C, Tschentscher, T & Meyer, M 2011, 'Femtosecond x-ray pulse length characterization at the Linac Coherent Light Source free-electron laser', New Journal of Physics, vol. 13, 093024. https://doi.org/10.1088/1367-2630/13/9/093024
Düsterer, S. ; Radcliffe, P. ; Bostedt, C. ; Bozek, J. ; Cavalieri, A. L. ; Coffee, R. ; Costello, J. T. ; Cubaynes, D. ; DiMauro, L. F. ; Ding, Y. ; Doumy, G. ; Grüner, F. ; Helml, W. ; Schweinberger, W. ; Kienberger, R. ; Maier, A. R. ; Messerschmidt, Marc ; Richardson, V. ; Roedig, C. ; Tschentscher, T. ; Meyer, M. / Femtosecond x-ray pulse length characterization at the Linac Coherent Light Source free-electron laser. In: New Journal of Physics. 2011 ; Vol. 13.
@article{a1d3e8c0684943249c96ab1361242675,
title = "Femtosecond x-ray pulse length characterization at the Linac Coherent Light Source free-electron laser",
abstract = "Two-color, single-shot time-of-flight electron spectroscopy of atomic neon was employed at the Linac Coherent Light Source (LCLS) to measure laser-assisted Auger decay in the x-ray regime. This x-ray-optical cross-correlation technique provides a straightforward, non-invasive and online means of determining the duration of femtosecond (>40 fs) x-ray pulses. In combination with a theoretical model of the process based on the softphoton approximation, we were able to obtain the LCLS pulse duration and to extract a mean value of the temporal jitter between the optical pulses from a synchronized Ti-sapphire laser and x-ray pulses from the LCLS. We find that the experimentally determined values are systematically smaller than the length of the electron bunches. Nominal electron pulse durations of 175 and 75 fs, as provided by the LCLS control system, yield x-ray pulse shapes of 120± 20 fs full-width at half-maximum (FWHM) and an upper limit of 40±20 fs FWHM, respectively. Simulations of the free-electron laser agree well with the experimental results.",
author = "S. D{\"u}sterer and P. Radcliffe and C. Bostedt and J. Bozek and Cavalieri, {A. L.} and R. Coffee and Costello, {J. T.} and D. Cubaynes and DiMauro, {L. F.} and Y. Ding and G. Doumy and F. Gr{\"u}ner and W. Helml and W. Schweinberger and R. Kienberger and Maier, {A. R.} and Marc Messerschmidt and V. Richardson and C. Roedig and T. Tschentscher and M. Meyer",
year = "2011",
month = "9",
day = "1",
doi = "10.1088/1367-2630/13/9/093024",
language = "English (US)",
volume = "13",
journal = "New Journal of Physics",
issn = "1367-2630",
publisher = "IOP Publishing Ltd.",

}

TY - JOUR

T1 - Femtosecond x-ray pulse length characterization at the Linac Coherent Light Source free-electron laser

AU - Düsterer, S.

AU - Radcliffe, P.

AU - Bostedt, C.

AU - Bozek, J.

AU - Cavalieri, A. L.

AU - Coffee, R.

AU - Costello, J. T.

AU - Cubaynes, D.

AU - DiMauro, L. F.

AU - Ding, Y.

AU - Doumy, G.

AU - Grüner, F.

AU - Helml, W.

AU - Schweinberger, W.

AU - Kienberger, R.

AU - Maier, A. R.

AU - Messerschmidt, Marc

AU - Richardson, V.

AU - Roedig, C.

AU - Tschentscher, T.

AU - Meyer, M.

PY - 2011/9/1

Y1 - 2011/9/1

N2 - Two-color, single-shot time-of-flight electron spectroscopy of atomic neon was employed at the Linac Coherent Light Source (LCLS) to measure laser-assisted Auger decay in the x-ray regime. This x-ray-optical cross-correlation technique provides a straightforward, non-invasive and online means of determining the duration of femtosecond (>40 fs) x-ray pulses. In combination with a theoretical model of the process based on the softphoton approximation, we were able to obtain the LCLS pulse duration and to extract a mean value of the temporal jitter between the optical pulses from a synchronized Ti-sapphire laser and x-ray pulses from the LCLS. We find that the experimentally determined values are systematically smaller than the length of the electron bunches. Nominal electron pulse durations of 175 and 75 fs, as provided by the LCLS control system, yield x-ray pulse shapes of 120± 20 fs full-width at half-maximum (FWHM) and an upper limit of 40±20 fs FWHM, respectively. Simulations of the free-electron laser agree well with the experimental results.

AB - Two-color, single-shot time-of-flight electron spectroscopy of atomic neon was employed at the Linac Coherent Light Source (LCLS) to measure laser-assisted Auger decay in the x-ray regime. This x-ray-optical cross-correlation technique provides a straightforward, non-invasive and online means of determining the duration of femtosecond (>40 fs) x-ray pulses. In combination with a theoretical model of the process based on the softphoton approximation, we were able to obtain the LCLS pulse duration and to extract a mean value of the temporal jitter between the optical pulses from a synchronized Ti-sapphire laser and x-ray pulses from the LCLS. We find that the experimentally determined values are systematically smaller than the length of the electron bunches. Nominal electron pulse durations of 175 and 75 fs, as provided by the LCLS control system, yield x-ray pulse shapes of 120± 20 fs full-width at half-maximum (FWHM) and an upper limit of 40±20 fs FWHM, respectively. Simulations of the free-electron laser agree well with the experimental results.

UR - http://www.scopus.com/inward/record.url?scp=80053416322&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80053416322&partnerID=8YFLogxK

U2 - 10.1088/1367-2630/13/9/093024

DO - 10.1088/1367-2630/13/9/093024

M3 - Article

AN - SCOPUS:80053416322

VL - 13

JO - New Journal of Physics

JF - New Journal of Physics

SN - 1367-2630

M1 - 093024

ER -