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 & 14 others 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

Research output: Contribution to journalArticle

111 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 languageEnglish
Pages (from-to)317-324
Number of pages8
JournalOptics Express
Volume19
Issue number1
DOIs
Publication statusPublished - 2011 Jan 3

Fingerprint

ultraviolet lasers
free electron lasers
sapphire
harmonics
inoculation
lasers
laser beams
spikes
spontaneous emission
narrowband
radiant flux density
plateaus
amplifiers
augmentation
profiles
wavelengths
simulation

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Togashi, T., Takahashi, E. J., Midorikawa, K., Aoyama, M., Yamakawa, K., Sato, T., ... 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

Extreme ultraviolet free electron laser seeded with high-order harmonic of Ti : Sapphire laser. / Togashi, Tadashi; Takahashi, Eiji J.; Midorikawa, Katsumi; Aoyama, Makoto; Yamakawa, Koichi; Sato, Takahiro; Iwasaki, Atsushi; Owada, Shigeki; Okino, Tomoya; Yamanouchi, Kaoru; Kannari, Fumihiko; Yagishita, Akira; Nakano, Hidetoshi; Couprie, Marie E.; Fukami, Kenji; Hatsui, Takaki; Hara, Toru; Kameshima, Takashi; Kitamura, Hideo; Kumagai, Noritaka; Matsubara, Shinichi; Nagasono, Mitsuru; Ohashi, Haruhiko; Ohshima, Takashi; Otake, Yuji; Shintake, Tsumoru; Tamasaku, Kenji; Tanaka, Hitoshi; Tanaka, Takashi; Togawa, Kazuaki; Tomizawa, Hiromitsu; Watanabe, Takahiro; Yabashi, Makina; Ishikawa, Tetsuya.

In: Optics Express, Vol. 19, No. 1, 03.01.2011, p. 317-324.

Research output: Contribution to journalArticle

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
Togashi T, Takahashi EJ, Midorikawa K, Aoyama M, Yamakawa K, Sato T et al. Extreme ultraviolet free electron laser seeded with high-order harmonic of Ti: Sapphire laser. Optics Express. 2011 Jan 3;19(1):317-324. https://doi.org/10.1364/OE.19.000317
Togashi, Tadashi ; Takahashi, Eiji J. ; Midorikawa, Katsumi ; Aoyama, Makoto ; Yamakawa, Koichi ; Sato, Takahiro ; Iwasaki, Atsushi ; Owada, Shigeki ; Okino, Tomoya ; Yamanouchi, Kaoru ; Kannari, Fumihiko ; Yagishita, Akira ; Nakano, Hidetoshi ; Couprie, Marie E. ; Fukami, Kenji ; Hatsui, Takaki ; Hara, Toru ; Kameshima, Takashi ; Kitamura, Hideo ; Kumagai, Noritaka ; Matsubara, Shinichi ; Nagasono, Mitsuru ; Ohashi, Haruhiko ; Ohshima, Takashi ; Otake, Yuji ; Shintake, Tsumoru ; Tamasaku, Kenji ; Tanaka, Hitoshi ; Tanaka, Takashi ; Togawa, Kazuaki ; Tomizawa, Hiromitsu ; Watanabe, Takahiro ; Yabashi, Makina ; Ishikawa, Tetsuya. / Extreme ultraviolet free electron laser seeded with high-order harmonic of Ti : Sapphire laser. In: Optics Express. 2011 ; Vol. 19, No. 1. pp. 317-324.
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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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