Abstract

We demonstrated the upper limitation to the number of shots, i.e., target lifetime, together with the number of photons emitted in the water-window soft x-ray spectral region from a number of targets used as sources in this spectral region, for multi-shot irradiation at the same position on the target surface. The spectra involved result from unresolved transition arrays originating from n=3n=4 transitions in medium-Z element plasmas and from n=4n=4 transitions originating in high-Z plasmas. The output flux was maintained for the highest number of shots in the case of the high melting point element molybdenum, and the total output in the water window was 7.7×1013  photons/sr at a laser power density of 1.2×1014  W/cm2.

© 2018 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Emission of water-window soft x-rays under optically thin conditions using low-density foam targets

Hiroyuki Hara, Hiromu Kawasaki, Toshiki Tamura, Tadashi Hatano, Takeo Ejima, Weihua Jiang, Hayato Ohashi, Shinichi Namba, Atsushi Sunahara, Akira Sasaki, Masaharu Nishikino, Gerry O’Sullivan, and Takeshi Higashiguchi
Opt. Lett. 43(15) 3750-3753 (2018)

Enhancement of water-window soft x-ray emission from laser-produced Au plasma under low-pressure nitrogen atmosphere

Christian John, Maki Kishimoto, Tomoyuki Johzaki, Takeshi Higashiguchi, Noboru Kakunaka, Yasuhiro Matsumoto, Noboru Hasegawa, Masaharu Nishikino, Takeo Ejima, Atsushi Sunahara, Takuma Endo, and Shinichi Namba
Opt. Lett. 44(6) 1439-1442 (2019)

Intense water-window soft x-ray emission by spectral control using dual laser pulses

Goki Arai, Hiroyuki Hara, Tadashi Hatano, Takeo Ejima, Weihua Jiang, Hayato Ohashi, Shinichi Namba, Atsushi Sunahara, Akira Sasaki, Masaharu Nishikino, Gerry O’Sullivan, and Takeshi Higashiguchi
Opt. Express 26(21) 27748-27756 (2018)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription