Double Core-Hole Creation by Sequential Attosecond Photoionization

Kenji Tamasaku, Mitsuru Nagasono, Hiroshi Iwayama, Eiji Shigemasa, Yuichi Inubushi, Takashi Tanaka, Kensuke Tono, Tadashi Togashi, Takahiro Sato, Tetsuo Katayama, Takashi Kameshima, Takaki Hatsui, Makina Yabashi, and Tetsuya Ishikawa

Phys. Rev. Lett. 111, 043001 – Published 23 July 2013

Abstract

X-ray fluorescence spectroscopy demonstrates that a single core-hole krypton with a 170-as lifetime can be photoionized again to a double core-hole state by an intense x-ray pulse. The observation indicates that unconventional interaction between intense x rays and atoms is no more negligible in applications with x-ray free-electron lasers. Quantitative analysis of the double core-hole creation including effects of a pulsed and spiky temporal structure enables estimation of the x-ray pulse duration in the sub-10-fs range.

Received 10 April 2013

DOI:https://doi.org/10.1103/PhysRevLett.111.043001

Authors & Affiliations

Kenji Tamasaku^1,*, Mitsuru Nagasono^1,†, Hiroshi Iwayama², Eiji Shigemasa², Yuichi Inubushi¹, Takashi Tanaka¹, Kensuke Tono³, Tadashi Togashi³, Takahiro Sato¹, Tetsuo Katayama³, Takashi Kameshima³, Takaki Hatsui¹, Makina Yabashi¹, and Tetsuya Ishikawa¹

¹RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
²UVSOR Facility, IMS, 38 Nishigo-Naka, Myodaiji-cho, Okazaki-shi, Nagoya 444-8585, Japan
³JASRI, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan

^*tamasaku@riken.jp
^†Deceased.

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Issue

Vol. 111, Iss. 4 — 26 July 2013

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