Spectral dynamics of soft X-ray emission in dual-laser-produced medium-Z plasma

Hayato Ohashi, Hiroyuki Hara, Goki Arai, Tadashi Hatano, Takeo Ejima, Chihiro Suzuki, Shinichi Namba, Akira Sasaki, Masaharu Nishikino, Gerry O’Sullivan, Takeshi Higashiguchi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Laser-produced medium element plasma sources are being considered as strong candidates for in vivo photographic imaging of biological samples in laboratory-scale water-window soft X-ray microscopes. We explored spectral changes in the emission from dual-laser-produced zirconium (Zr) plasmas in the water-window soft X-ray spectral region. The emission was enhanced at a delay time of 5 ns between the pre- and main-laser pulses and found to possess a source size of 38μm×68μm very similar to that obtained without any pre-pulse. We also investigated the decrease in emission observed at longer delay times, in the context of the collisional-radiative (CR) model-calculated absorption coefficient.

Original languageEnglish
Article number193
JournalApplied Physics B: Lasers and Optics
Issue number10
Publication statusPublished - 2018 Oct 1

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

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