title: Angularly separated harmonic generation from intense laser interaction with blazed diffraction gratings.
abstract: We made numerical simulations of the generation of narrowband beams of extreme ultraviolet radiation from intense laser interaction with a blazed grating surface. Strong fifth harmonic emission into its blazed diffraction order was observed as well as heavy suppression of the fundamental frequency with comparison to a typical harmonic spectrum from a flat target. The results demonstrate a new highly efficient method of generating near-monochromatic harmonics from the fundamental with minimal effect on the pulse duration.
authors.affiliation: Centre for Plasma Physics, Department of Physics and Astronomy, Queen's University Belfast, Belfast BT7 1NN, UK. myeung01@qub.ac.uk
authors.forename: M
authors.initials: M
authors.lastname: Yeung
authors.forename: M
authors.initials: M
authors.lastname: Zepf
authors.forename: M
authors.initials: M
authors.lastname: Geissler
authors.forename: B
authors.initials: B
authors.lastname: Dromey