Improved beam characteristics of solid-target son x-ray laser amplifiers by injection seeding with high harmonic pulses
2010 (English)In: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 35, no 14, 2317-2319 p.Article in journal (Refereed) Published
Injection seeding of solid-target soft x-ray laser amplifiers with high harmonic pulses is shown to dramatically improve the far-field laser beam profile and reduce the beam divergence. Measurements and two-dimensional simulations for a 13.9 nm nickel-like Ag amplifier show that the amplified beam divergence depends strongly on the seed and can therefore be controlled by selecting the divergence of the seed. The near-field beam size of both the seeded and unseeded lasers is shown to be determined by the size of the gain region and the divergence of the amplified beams.
Place, publisher, year, edition, pages
Optical Society of America, 2010. Vol. 35, no 14, 2317-2319 p.
Atom and Molecular Physics and Optics
IdentifiersURN: urn:nbn:se:kth:diva-85956DOI: 10.1364/OL.35.002317ISI: 000279994400001PubMedID: 20634815OAI: oai:DiVA.org:kth-85956DiVA: diva2:500284
QC 201202172012-02-132012-02-132012-02-17Bibliographically approved