Measurement of the duration of X-ray lasing pumped by an optical laser pulse of picosecond duration

Y. Abou-Ali, G.J. Tallents, M. Edwards, R.E. King, G.J. Pert, S.J. Pestehe, F. Strati, Caroline Keenan, Ciaran Lewis, Joan Topping, O. Guilbaud, A. Klisnick, D. Ros, R. Clarke, D. Neely, M. Notley, A. Demir

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Abstract

Measurements of the duration of X-ray lasing pumped with picosecond pulses from the VULCAN optical laser are obtained using a streak camera with 700 fs temporal resolution. Combined with a temporal smearing due to the spectrometer employed, we have measured X-ray laser pulse durations for Ni-like silver at 13.9 nm with a total time resolution of 1.1 ps. For Ni-like silver, the X-ray laser output has a steep rise followed by an approximately exponential temporal decay with measured full-width at half-maximum (FWHM) of 3.7 (+/-0.5) ps. For Ne-like nickel lasing at 23.1 nm, the measured duration of lasing is approximate to10.7 (+/-1) ps (FWHM). An estimate of the duration of the X-ray laser gain has been obtained by temporally resolving spectrally integrated continuum and resonance line emission. For Ni-like silver, this time of emission is approximate to22 (+/-2) ps (FWHM), while for Ne-like nickel we measure approximate to35 (+/-2) ps (FWHM). Assuming that these times of emission correspond to the gain duration, we show that a simple model consistently relates the gain durations to the measured durations of X-ray lasing. (C) 2002 Elsevier Science B.V. All rights reserved.
Original languageEnglish
Pages (from-to)397-406
Number of pages10
JournalOptics Communications
Volume215
Issue number4-6
Publication statusPublished - 15 Jan 2003

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Abou-Ali, Y., Tallents, G. J., Edwards, M., King, R. E., Pert, G. J., Pestehe, S. J., Strati, F., Keenan, C., Lewis, C., Topping, J., Guilbaud, O., Klisnick, A., Ros, D., Clarke, R., Neely, D., Notley, M., & Demir, A. (2003). Measurement of the duration of X-ray lasing pumped by an optical laser pulse of picosecond duration. Optics Communications, 215(4-6), 397-406.