High energy amplification of picosecond pulses at 248 nm

Experiments to amplify picosecond pulses in a large aperture e-beam-pumped KrF amplifier have demonstrated energies of up to 2.5 J in a pulse of ≈ 3.5 ps duration corresponding to a peak power of 0.7 TW. Background amplified spontaneous emission levels were typically 50 mJ in a 20 ns pulse and were...

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Bibliographic Details
Published in:Optics communications 1988-04, Vol.66 (2), p.127-132
Main Authors: Barr, J.R.M., Everall, N.J., Hooker, C.J., Ross, I.N., Shaw, M.J., Toner, W.T.
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Gas lasers including excimer and metal-vapor lasers
Lasers
Optics
Physics
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Summary:Experiments to amplify picosecond pulses in a large aperture e-beam-pumped KrF amplifier have demonstrated energies of up to 2.5 J in a pulse of ≈ 3.5 ps duration corresponding to a peak power of 0.7 TW. Background amplified spontaneous emission levels were typically 50 mJ in a 20 ns pulse and were strongly dependent on gain staging. Measurements of the saturation fluence and the gain recovery time of the e-beam-pumped gain medium yielded values of 2.0±0.4 mJ cm -2 and ≈ 3 ns respectively.
ISSN:0030-4018
1873-0310
DOI:10.1016/0030-4018(88)90047-8