Short-pulse, extreme-ultraviolet continuum emission from a table-top laser plasma light source
Meighan, Oonagh and Gray, Andrew and Mosnier, Jean-Paul and Whitty, William and Costello, John T. and Lewis, C. L. S. and MacPhee, A. and Allott, R. and Turcu, I. C. E. and Lamb, A. (1997) Short-pulse, extreme-ultraviolet continuum emission from a table-top laser plasma light source. Applied Physics Letters, 70 (12). pp. 1497-1499. ISSN 0003-6951
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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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