An XUV-FEL amplifier seeded using high harmonic generation

McNeil, B W J and Clarke, J A and Dunning, D J and Hirst, G J and Owen, H L and Thompson, N R and Sheehy, B and Williams, P H (2007) An XUV-FEL amplifier seeded using high harmonic generation. New Journal of Physics, 9. 82. ISSN 1367-2630 (https://doi.org/10.1088/1367-2630/9/4/082)

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Abstract

A detailed design of a free electron laser ( FEL) amplifier operating in the extreme ultra violet ( XUV) and seeded directly by a high harmonic source is presented. The design is part of the 4th generation light source ( 4GLS) facility proposed for the Daresbury Laboratory in the UK which will offer users a suite of high brightness synchronised sources from THz frequencies into the XUV. The XUV-FEL will generate photons with tunable energies from 8 to 100 eV at giga-watt peak power levels in near Fourier-transform limited pulses of variable polarisation. The designs of the high harmonic generation ( HHG) seeding, FEL amplifier and synchronising systems are presented. Numerical simulations quantify the FEL output characteristics.

ORCID iDs

McNeil, B W J ORCID logoORCID: https://orcid.org/0000-0002-7267-611X, Clarke, J A, Dunning, D J, Hirst, G J, Owen, H L, Thompson, N R, Sheehy, B and Williams, P H;