Soft X-ray emission from molybdenum plasmas generated by dual laser pulses

Ragava Lokasani, Goki Arai, Yoshiki Kondo, Hiroyuki Hara, Thanh Hung Dinh, Takeo Ejima, Tadashi Hatano, Weihua Jiang, Tetsuya Makimura, Bowen Li, Padraig Dunne, Gerry O'Sullivan, Takeshi Higashiguchi, Jiri Limpouch

    Research output: Contribution to journalArticlepeer-review

    21 Citations (Scopus)

    Abstract

    We demonstrate efficient enhancement of soft X-ray (SXR) emission from molybdenum plasmas produced using dual pulse irradiation, in which 10-ns and 150-ps pre-pulses were followed by a 150-ps main pulse. The number of photons was observed to be 5.3 × 1016 photons/sr, which corresponded to a conversion efficiency of 1.5%/sr in λ = 2.34-4.38 nm region at a pulse separation time of 1 ns with the 150-ps pre-pulse. The conversion efficiency became 1.3 times as large as that produced by a single pulse. The results indicate the advantage of dual pulse irradiation using sub-ns pre-and main pulses to produce the bright plasmas required for applications such as laboratory based SXR microscopy.

    Original languageEnglish
    Article number194103
    JournalApplied Physics Letters
    Volume109
    Issue number19
    DOIs
    Publication statusPublished - 2016 Nov 7

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

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