High repetition rate collisional soft X-ray lasers based on grazing incidence pumping

Bradley M. Luther, Yong Wang, Miguel A. Larotonda, David Alessi, Mark Berrill, Jorge J. Rocca, James Dunn, R. Keenan, Vyacheslav N. Shlyaptsev

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

We discuss the demonstration of gain-saturated high repetition rate table-top soft X-ray lasers producing microwatt average powers at wavelengths ranging from 13.9 to 33 nm. The results were obtained heating a precreated plasma with a picosecond optical laser pulse impinging at grazing incidence onto a precreated plasma. This pumping geometry increases the energy deposition efficiency of the pump beam into the gain region, making it possible to saturate soft X-ray lasers in this wavelength range with a short pulse pump energy of only 1 J at 800-nm wavelength. Results corresponding to 5-Hz repetition rate operation of gain-saturated 14.7-nm Ni-like Pd and 32.6-nm line Ne-like Ti lasers pumped by a table-top Ti:sapphire laser are reported. We also discuss results obtained using a 1 ω/1054-nm prepulse and 2 ω/527-nm short pulse from a Nd:glass pump laser. This work demonstrates the feasibility of producing compact high average power soft X-ray lasers for applications.

Original languageEnglish
Pages (from-to)4-13
Number of pages10
JournalIEEE Journal of Quantum Electronics
Volume42
Issue number1
DOIs
StatePublished - Jan 2006
Externally publishedYes

Funding

Manuscript received June 30, 2005. The work conducted at Colorado State University was supported by the NSF ERC for Extreme Ultraviolet Science and Technology under NSF Award EEC-0310717, with equipment developed under NSF Grant ECS-9 977 677. The work conducted at Lawrence Livermore National Laboratory was performed under the auspices of the U.S. Department of Energy by the University of California Lawrence Livermore National Laboratory under Contract no. W-7405-Eng-48. This work was supported in part by the W.M. Keck Foundation.

FundersFunder number
NSF ERC for Extreme Ultraviolet Science and Technology
Lawrence Livermore National LaboratoryW-7405-Eng-48
National Science FoundationECS-9 977 677, EEC-0310717
U.S. Department of Energy
W. M. Keck Foundation

    Keywords

    • Grazing incidence pumping
    • Neon-like ions
    • Nickel-like ions
    • Soft X-ray laser

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