Coherence and bandwidth measurements of harmonics generated from solid surfaces irradiated by intense picosecond laser pulses

J. Zhang, Matthew Zepf, P.A. Norreys, A.E. Dangor, M. Bakarezos, C.N. Danson, A. Dyson, A.P. Fews, P. Gibbon, M.H. Key, P. Lee, P. Loukakos, S. Moustaizis, D. Neely, F.N. Walsh, J.S. Wark

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

We present measurements of the transverse and longitudinal coherence lengths of the fourth harmonic of a 1053-nm, 2.5-ps laser generated during high-intensity (up to 10(19) W cm(-2)) interactions with a solid target. Coherence lengths were measured by use of a Young's double-slit interferometer. The effective source size, as defined by the Van Cittert-Zernicke theorem, was found to be 10-12 mu m, and the coherence time was observed to be in the range 0.02-0.4 ps.
Original languageEnglish
Pages (from-to)1597-1603
Number of pages7
JournalPhysical Review A
Volume54
Publication statusPublished - 1996

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