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Efficient Excitation of Gain-Saturated Sub-9-nm-Wavelength Tabletop Soft-X-Ray Lasers and Lasing Down to 7.36 nm
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2011 (English)In: PHYSICAL REVIEW X, ISSN 2160-3308, Vol. 1, no 2Article in journal (Refereed) Published
Abstract [en]

We have demonstrated the efficient generation of sub-9-nm-wavelength picosecond laser pulses of microjoule energy at 1-Hz repetition rate with a tabletop laser. Gain-saturated lasing was obtained at λ=8.85  nm in nickel-like lanthanum ions excited by collisional electron-impact excitation in a precreated plasma column heated by a picosecond optical laser pulse of 4-J energy. Furthermore, isoelectronic scaling along the lanthanide series resulted in lasing at wavelengths as short as λ=7.36  nm. Simulations show that the collisionally broadened atomic transitions in these dense plasmas can support the amplification of subpicosecond soft-x-ray laser pulses.

Place, publisher, year, edition, pages
American Physical Society , 2011. Vol. 1, no 2
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Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-86056DOI: 10.1103/PhysRevX.1.021023ISI: 000310508600002Scopus ID: 2-s2.0-84865127843OAI: oai:DiVA.org:kth-86056DiVA: diva2:500368
Note
QC 20120411Available from: 2012-02-13 Created: 2012-02-13 Last updated: 2012-04-11Bibliographically approved

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