Short-pulse, extreme-ultraviolet continuum emission from a table-top laser plasma light source
Author(s) -
O. Meighan,
Andrew Gray,
Jean-Paul Mosnier,
William Whitty,
John Costello,
C. L. S. Lewis,
A. G. MacPhee,
R. Allott,
I. C. E. Turcu,
Angela B. Lamb
Publication year - 1997
Publication title -
applied physics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 442
eISSN - 1077-3118
pISSN - 0003-6951
DOI - 10.1063/1.118364
Subject(s) - extreme ultraviolet , streak camera , laser , plasma , emission spectrum , atomic emission spectroscopy , atomic physics , laser induced breakdown spectroscopy , spectroscopy , ultraviolet , plasma diagnostics , spontaneous emission , amplified spontaneous emission , physics , picosecond , optics , pulse duration , spectral line , astronomy , inductively coupled plasma , quantum mechanics
We have observed extreme-ultraviolet (XUV) “line-free” continuum emission from laser plasmas of high atomic number elements using targets irradiated with 248 nm laser pulses of 7 ps duration at a power density of ∼ 1013 W/cm2. Using both dispersive spectroscopy and streak camera detection, the spectral and temporal evolution of XUV continuum emission for several target atomic numbers has been measured on a time scale with an upper limit of several hundred picoseconds limited by amplified spontaneous emission
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