Extreme ultraviolet free electron laser seeded with high-order harmonic of Ti: Sapphire laser

Tadashi Togashi; Eiji J. Takahashi; Katsumi Midorikawa; Makoto Aoyama; Koichi Yamakawa; Takahiro Sato; Atsushi Iwasaki; Shigeki Owada; Tomoya Okino; Kaoru Yamanouchi; Fumihiko Kannari; Akira Yagishita; Hidetoshi Nakano; Marie E. Couprie; Kenji Fukami; Takaki Hatsui; Toru Hara; Takashi Kameshima; Hideo Kitamura; Noritaka Kumagai; Shinichi Matsubara; Mitsuru Nagasono; Haruhiko Ohashi; Takashi Ohshima; Yuji Otake; Tsumoru Shintake; Kenji Tamasaku; Hitoshi Tanaka; Takashi Tanaka; Kazuaki Togawa; Hiromitsu Tomizawa; Takahiro Watanabe; Makina Yabashi; Tetsuya Ishikawa

doi:10.1364/OE.19.000317

Extreme ultraviolet free electron laser seeded with high-order harmonic of Ti: Sapphire laser

Tadashi Togashi, Eiji J. Takahashi, Katsumi Midorikawa, Makoto Aoyama, Koichi Yamakawa, Takahiro Sato, Atsushi Iwasaki, Shigeki Owada, Tomoya Okino, Kaoru Yamanouchi, Fumihiko Kannari, Akira Yagishita, Hidetoshi Nakano, Marie E. Couprie, Kenji Fukami, Takaki Hatsui, Toru Hara, Takashi Kameshima, Hideo Kitamura, Noritaka KumagaiShinichi Matsubara, Mitsuru Nagasono, Haruhiko Ohashi, Takashi Ohshima, Yuji Otake, Tsumoru Shintake, Kenji Tamasaku, Hitoshi Tanaka, Takashi Tanaka, Kazuaki Togawa, Hiromitsu Tomizawa, Takahiro Watanabe, Makina Yabashi, Tetsuya Ishikawa

Research output: Contribution to journal › Article › peer-review

136 Citations (Scopus)

Abstract

The 13th harmonic of a Ti:sapphire (Ti:S) laser in the plateau region was injected as a seeding source to a 250-MeV free-electron-laser (FEL) amplifier. When the amplification conditions were fulfilled, strong enhancement of the radiation intensity by a factor of 650 was observed. The random and uncontrollable spikes, which appeared in the spectra of the Self-Amplified Spontaneous Emission (SASE) based FEL radiation without the seeding source, were found to be suppressed drastically to form to a narrow-band, single peak profile at 61.2 nm. The properties of the seeded FEL radiation were well reproduced by numerical simulations. We discuss the future precept of the seeded FEL scheme to the shorter wavelength region.

Original language	English
Pages (from-to)	317-324
Number of pages	8
Journal	Optics Express
Volume	19
Issue number	1
DOIs	https://doi.org/10.1364/OE.19.000317
Publication status	Published - 2011 Jan 3
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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Togashi, T., Takahashi, E. J., Midorikawa, K., Aoyama, M., Yamakawa, K., Sato, T., Iwasaki, A., Owada, S., Okino, T., Yamanouchi, K., Kannari, F., Yagishita, A., Nakano, H., Couprie, M. E., Fukami, K., Hatsui, T., Hara, T., Kameshima, T., Kitamura, H., ... Ishikawa, T. (2011). Extreme ultraviolet free electron laser seeded with high-order harmonic of Ti: Sapphire laser. Optics Express, 19(1), 317-324. https://doi.org/10.1364/OE.19.000317

Togashi, T, Takahashi, EJ, Midorikawa, K, Aoyama, M, Yamakawa, K, Sato, T, Iwasaki, A, Owada, S, Okino, T, Yamanouchi, K, Kannari, F, Yagishita, A, Nakano, H, Couprie, ME, Fukami, K, Hatsui, T, Hara, T, Kameshima, T, Kitamura, H, Kumagai, N, Matsubara, S, Nagasono, M, Ohashi, H, Ohshima, T, Otake, Y, Shintake, T, Tamasaku, K, Tanaka, H, Tanaka, T, Togawa, K, Tomizawa, H, Watanabe, T, Yabashi, M & Ishikawa, T 2011, 'Extreme ultraviolet free electron laser seeded with high-order harmonic of Ti: Sapphire laser', Optics Express, vol. 19, no. 1, pp. 317-324. https://doi.org/10.1364/OE.19.000317

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abstract = "The 13th harmonic of a Ti:sapphire (Ti:S) laser in the plateau region was injected as a seeding source to a 250-MeV free-electron-laser (FEL) amplifier. When the amplification conditions were fulfilled, strong enhancement of the radiation intensity by a factor of 650 was observed. The random and uncontrollable spikes, which appeared in the spectra of the Self-Amplified Spontaneous Emission (SASE) based FEL radiation without the seeding source, were found to be suppressed drastically to form to a narrow-band, single peak profile at 61.2 nm. The properties of the seeded FEL radiation were well reproduced by numerical simulations. We discuss the future precept of the seeded FEL scheme to the shorter wavelength region.",

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AU - Togashi, Tadashi

AU - Takahashi, Eiji J.

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AU - Aoyama, Makoto

AU - Yamakawa, Koichi

AU - Sato, Takahiro

AU - Iwasaki, Atsushi

AU - Owada, Shigeki

AU - Okino, Tomoya

AU - Yamanouchi, Kaoru

AU - Kannari, Fumihiko

AU - Yagishita, Akira

AU - Nakano, Hidetoshi

AU - Couprie, Marie E.

AU - Fukami, Kenji

AU - Hatsui, Takaki

AU - Hara, Toru

AU - Kameshima, Takashi

AU - Kitamura, Hideo

AU - Kumagai, Noritaka

AU - Matsubara, Shinichi

AU - Nagasono, Mitsuru

AU - Ohashi, Haruhiko

AU - Ohshima, Takashi

AU - Otake, Yuji

AU - Shintake, Tsumoru

AU - Tamasaku, Kenji

AU - Tanaka, Hitoshi

AU - Tanaka, Takashi

AU - Togawa, Kazuaki

AU - Tomizawa, Hiromitsu

AU - Watanabe, Takahiro

AU - Yabashi, Makina

AU - Ishikawa, Tetsuya

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Extreme ultraviolet free electron laser seeded with high-order harmonic of Ti: Sapphire laser

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