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Stabilization of a high-order harmonic generation seeded extreme ultraviolet free electron laser by time-synchronization control with electro-optic sampling
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| Zeitschriftentitel: | High Power Laser Science and Engineering |
|---|---|
| Personen und Körperschaften: | , , , , , , , , , , , , , , , , , , , |
| In: | High Power Laser Science and Engineering, 3, 2015 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Cambridge University Press (CUP)
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| Schlagwörter: |
| author_facet |
Tomizawa, H. Sato, T. Ogawa, K. Togawa, K. Tanaka, T. Hara, T. Yabashi, M. Tanaka, H. Ishikawa, T. Togashi, T. Matsubara, S. Okayasu, Y. Watanabe, T. Takahashi, E.J. Midorikawa, K. Aoyama, M. Yamakawa, K. Owada, S. Iwasaki, A. Yamanouchi, K. Tomizawa, H. Sato, T. Ogawa, K. Togawa, K. Tanaka, T. Hara, T. Yabashi, M. Tanaka, H. Ishikawa, T. Togashi, T. Matsubara, S. Okayasu, Y. Watanabe, T. Takahashi, E.J. Midorikawa, K. Aoyama, M. Yamakawa, K. Owada, S. Iwasaki, A. Yamanouchi, K. |
|---|---|
| author |
Tomizawa, H. Sato, T. Ogawa, K. Togawa, K. Tanaka, T. Hara, T. Yabashi, M. Tanaka, H. Ishikawa, T. Togashi, T. Matsubara, S. Okayasu, Y. Watanabe, T. Takahashi, E.J. Midorikawa, K. Aoyama, M. Yamakawa, K. Owada, S. Iwasaki, A. Yamanouchi, K. |
| spellingShingle |
Tomizawa, H. Sato, T. Ogawa, K. Togawa, K. Tanaka, T. Hara, T. Yabashi, M. Tanaka, H. Ishikawa, T. Togashi, T. Matsubara, S. Okayasu, Y. Watanabe, T. Takahashi, E.J. Midorikawa, K. Aoyama, M. Yamakawa, K. Owada, S. Iwasaki, A. Yamanouchi, K. High Power Laser Science and Engineering Stabilization of a high-order harmonic generation seeded extreme ultraviolet free electron laser by time-synchronization control with electro-optic sampling Nuclear Energy and Engineering Nuclear and High Energy Physics Atomic and Molecular Physics, and Optics Electronic, Optical and Magnetic Materials |
| author_sort |
tomizawa, h. |
| spelling |
Tomizawa, H. Sato, T. Ogawa, K. Togawa, K. Tanaka, T. Hara, T. Yabashi, M. Tanaka, H. Ishikawa, T. Togashi, T. Matsubara, S. Okayasu, Y. Watanabe, T. Takahashi, E.J. Midorikawa, K. Aoyama, M. Yamakawa, K. Owada, S. Iwasaki, A. Yamanouchi, K. 2095-4719 2052-3289 Cambridge University Press (CUP) Nuclear Energy and Engineering Nuclear and High Energy Physics Atomic and Molecular Physics, and Optics Electronic, Optical and Magnetic Materials http://dx.doi.org/10.1017/hpl.2015.9 <jats:p>A fully coherent free electron laser (FEL) seeded with a higher-order harmonic (HH) pulse from high-order harmonic generation (HHG) is successfully operated for a sufficiently prolonged time in pilot user experiments by using a timing drift feedback. For HHG-seeded FELs, the seeding laser pulses have to be synchronized with electron bunches. Despite seeded FELs being non-chaotic light sources in principle, external laser-seeded FELs are often unstable in practice because of a timing jitter and a drift between the seeding laser pulses and the accelerated electron bunches. Accordingly, we constructed a relative arrival-timing monitor based on non-invasive electro-optic sampling (EOS). The EOS monitor made uninterrupted shot-to-shot monitoring possible even during the seeded FEL operation. The EOS system was then used for arrival-timing feedback with an adjustability of 100 fs for continual operation of the HHG-seeded FEL. Using the EOS-based beam drift controlling system, the HHG-seeded FEL was operated over half a day with an effective hit rate of 20%–30%. The output pulse energy was <jats:inline-formula> <jats:alternatives> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" mime-subtype="gif" xlink:type="simple" xlink:href="S2095471915000092_inline1" /> <jats:tex-math>$20~{\rm\mu}\text{J}$</jats:tex-math> </jats:alternatives> </jats:inline-formula> at the 61.2 nm wavelength. Towards seeded FELs in the water window region, we investigated our upgrade plan to seed high-power FELs with HH photon energy of 30–100 eV and lase at shorter wavelengths of up to 2 nm through high-gain harmonic generation (HGHG) at the energy-upgraded SPring-8 Compact SASE Source (SCSS) accelerator. We studied a benefit as well as the feasibility of the next HHG-seeded FEL machine with single-stage HGHG with tunability of a lasing wavelength.</jats:p> Stabilization of a high-order harmonic generation seeded extreme ultraviolet free electron laser by time-synchronization control with electro-optic sampling High Power Laser Science and Engineering |
| doi_str_mv |
10.1017/hpl.2015.9 |
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Online Free |
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Technik Physik |
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Cambridge University Press (CUP), 2015 |
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Cambridge University Press (CUP), 2015 |
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2052-3289 2095-4719 |
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2052-3289 2095-4719 |
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tomizawa2015stabilizationofahighorderharmonicgenerationseededextremeultravioletfreeelectronlaserbytimesynchronizationcontrolwithelectroopticsampling |
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2015 |
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Cambridge University Press (CUP) |
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| title |
Stabilization of a high-order harmonic generation seeded extreme ultraviolet free electron laser by time-synchronization control with electro-optic sampling |
| title_unstemmed |
Stabilization of a high-order harmonic generation seeded extreme ultraviolet free electron laser by time-synchronization control with electro-optic sampling |
| title_full |
Stabilization of a high-order harmonic generation seeded extreme ultraviolet free electron laser by time-synchronization control with electro-optic sampling |
| title_fullStr |
Stabilization of a high-order harmonic generation seeded extreme ultraviolet free electron laser by time-synchronization control with electro-optic sampling |
| title_full_unstemmed |
Stabilization of a high-order harmonic generation seeded extreme ultraviolet free electron laser by time-synchronization control with electro-optic sampling |
| title_short |
Stabilization of a high-order harmonic generation seeded extreme ultraviolet free electron laser by time-synchronization control with electro-optic sampling |
| title_sort |
stabilization of a high-order harmonic generation seeded extreme ultraviolet free electron laser by time-synchronization control with electro-optic sampling |
| topic |
Nuclear Energy and Engineering Nuclear and High Energy Physics Atomic and Molecular Physics, and Optics Electronic, Optical and Magnetic Materials |
| url |
http://dx.doi.org/10.1017/hpl.2015.9 |
| publishDate |
2015 |
| physical |
|
| description |
<jats:p>A fully coherent free electron laser (FEL) seeded with a higher-order harmonic (HH) pulse from high-order harmonic generation (HHG) is successfully operated for a sufficiently prolonged time in pilot user experiments by using a timing drift feedback. For HHG-seeded FELs, the seeding laser pulses have to be synchronized with electron bunches. Despite seeded FELs being non-chaotic light sources in principle, external laser-seeded FELs are often unstable in practice because of a timing jitter and a drift between the seeding laser pulses and the accelerated electron bunches. Accordingly, we constructed a relative arrival-timing monitor based on non-invasive electro-optic sampling (EOS). The EOS monitor made uninterrupted shot-to-shot monitoring possible even during the seeded FEL operation. The EOS system was then used for arrival-timing feedback with an adjustability of 100 fs for continual operation of the HHG-seeded FEL. Using the EOS-based beam drift controlling system, the HHG-seeded FEL was operated over half a day with an effective hit rate of 20%–30%. The output pulse energy was <jats:inline-formula>
<jats:alternatives>
<jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" mime-subtype="gif" xlink:type="simple" xlink:href="S2095471915000092_inline1" />
<jats:tex-math>$20~{\rm\mu}\text{J}$</jats:tex-math>
</jats:alternatives>
</jats:inline-formula> at the 61.2 nm wavelength. Towards seeded FELs in the water window region, we investigated our upgrade plan to seed high-power FELs with HH photon energy of 30–100 eV and lase at shorter wavelengths of up to 2 nm through high-gain harmonic generation (HGHG) at the energy-upgraded SPring-8 Compact SASE Source (SCSS) accelerator. We studied a benefit as well as the feasibility of the next HHG-seeded FEL machine with single-stage HGHG with tunability of a lasing wavelength.</jats:p> |
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| author | Tomizawa, H., Sato, T., Ogawa, K., Togawa, K., Tanaka, T., Hara, T., Yabashi, M., Tanaka, H., Ishikawa, T., Togashi, T., Matsubara, S., Okayasu, Y., Watanabe, T., Takahashi, E.J., Midorikawa, K., Aoyama, M., Yamakawa, K., Owada, S., Iwasaki, A., Yamanouchi, K. |
| author_facet | Tomizawa, H., Sato, T., Ogawa, K., Togawa, K., Tanaka, T., Hara, T., Yabashi, M., Tanaka, H., Ishikawa, T., Togashi, T., Matsubara, S., Okayasu, Y., Watanabe, T., Takahashi, E.J., Midorikawa, K., Aoyama, M., Yamakawa, K., Owada, S., Iwasaki, A., Yamanouchi, K., Tomizawa, H., Sato, T., Ogawa, K., Togawa, K., Tanaka, T., Hara, T., Yabashi, M., Tanaka, H., Ishikawa, T., Togashi, T., Matsubara, S., Okayasu, Y., Watanabe, T., Takahashi, E.J., Midorikawa, K., Aoyama, M., Yamakawa, K., Owada, S., Iwasaki, A., Yamanouchi, K. |
| author_sort | tomizawa, h. |
| container_start_page | 0 |
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| description | <jats:p>A fully coherent free electron laser (FEL) seeded with a higher-order harmonic (HH) pulse from high-order harmonic generation (HHG) is successfully operated for a sufficiently prolonged time in pilot user experiments by using a timing drift feedback. For HHG-seeded FELs, the seeding laser pulses have to be synchronized with electron bunches. Despite seeded FELs being non-chaotic light sources in principle, external laser-seeded FELs are often unstable in practice because of a timing jitter and a drift between the seeding laser pulses and the accelerated electron bunches. Accordingly, we constructed a relative arrival-timing monitor based on non-invasive electro-optic sampling (EOS). The EOS monitor made uninterrupted shot-to-shot monitoring possible even during the seeded FEL operation. The EOS system was then used for arrival-timing feedback with an adjustability of 100 fs for continual operation of the HHG-seeded FEL. Using the EOS-based beam drift controlling system, the HHG-seeded FEL was operated over half a day with an effective hit rate of 20%–30%. The output pulse energy was <jats:inline-formula> <jats:alternatives> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" mime-subtype="gif" xlink:type="simple" xlink:href="S2095471915000092_inline1" /> <jats:tex-math>$20~{\rm\mu}\text{J}$</jats:tex-math> </jats:alternatives> </jats:inline-formula> at the 61.2 nm wavelength. Towards seeded FELs in the water window region, we investigated our upgrade plan to seed high-power FELs with HH photon energy of 30–100 eV and lase at shorter wavelengths of up to 2 nm through high-gain harmonic generation (HGHG) at the energy-upgraded SPring-8 Compact SASE Source (SCSS) accelerator. We studied a benefit as well as the feasibility of the next HHG-seeded FEL machine with single-stage HGHG with tunability of a lasing wavelength.</jats:p> |
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| id | ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTAxNy9ocGwuMjAxNS45 |
| imprint | Cambridge University Press (CUP), 2015 |
| imprint_str_mv | Cambridge University Press (CUP), 2015 |
| institution | DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1, DE-105, DE-14, DE-Ch1, DE-L229, DE-D275, DE-Bn3, DE-Brt1, DE-D161, DE-Zwi2 |
| issn | 2052-3289, 2095-4719 |
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| language | English |
| last_indexed | 2024-03-01T12:53:18.225Z |
| match_str | tomizawa2015stabilizationofahighorderharmonicgenerationseededextremeultravioletfreeelectronlaserbytimesynchronizationcontrolwithelectroopticsampling |
| mega_collection | Cambridge University Press (CUP) (CrossRef) |
| physical | |
| publishDate | 2015 |
| publishDateSort | 2015 |
| publisher | Cambridge University Press (CUP) |
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| recordtype | ai |
| series | High Power Laser Science and Engineering |
| source_id | 49 |
| spelling | Tomizawa, H. Sato, T. Ogawa, K. Togawa, K. Tanaka, T. Hara, T. Yabashi, M. Tanaka, H. Ishikawa, T. Togashi, T. Matsubara, S. Okayasu, Y. Watanabe, T. Takahashi, E.J. Midorikawa, K. Aoyama, M. Yamakawa, K. Owada, S. Iwasaki, A. Yamanouchi, K. 2095-4719 2052-3289 Cambridge University Press (CUP) Nuclear Energy and Engineering Nuclear and High Energy Physics Atomic and Molecular Physics, and Optics Electronic, Optical and Magnetic Materials http://dx.doi.org/10.1017/hpl.2015.9 <jats:p>A fully coherent free electron laser (FEL) seeded with a higher-order harmonic (HH) pulse from high-order harmonic generation (HHG) is successfully operated for a sufficiently prolonged time in pilot user experiments by using a timing drift feedback. For HHG-seeded FELs, the seeding laser pulses have to be synchronized with electron bunches. Despite seeded FELs being non-chaotic light sources in principle, external laser-seeded FELs are often unstable in practice because of a timing jitter and a drift between the seeding laser pulses and the accelerated electron bunches. Accordingly, we constructed a relative arrival-timing monitor based on non-invasive electro-optic sampling (EOS). The EOS monitor made uninterrupted shot-to-shot monitoring possible even during the seeded FEL operation. The EOS system was then used for arrival-timing feedback with an adjustability of 100 fs for continual operation of the HHG-seeded FEL. Using the EOS-based beam drift controlling system, the HHG-seeded FEL was operated over half a day with an effective hit rate of 20%–30%. The output pulse energy was <jats:inline-formula> <jats:alternatives> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" mime-subtype="gif" xlink:type="simple" xlink:href="S2095471915000092_inline1" /> <jats:tex-math>$20~{\rm\mu}\text{J}$</jats:tex-math> </jats:alternatives> </jats:inline-formula> at the 61.2 nm wavelength. Towards seeded FELs in the water window region, we investigated our upgrade plan to seed high-power FELs with HH photon energy of 30–100 eV and lase at shorter wavelengths of up to 2 nm through high-gain harmonic generation (HGHG) at the energy-upgraded SPring-8 Compact SASE Source (SCSS) accelerator. We studied a benefit as well as the feasibility of the next HHG-seeded FEL machine with single-stage HGHG with tunability of a lasing wavelength.</jats:p> Stabilization of a high-order harmonic generation seeded extreme ultraviolet free electron laser by time-synchronization control with electro-optic sampling High Power Laser Science and Engineering |
| spellingShingle | Tomizawa, H., Sato, T., Ogawa, K., Togawa, K., Tanaka, T., Hara, T., Yabashi, M., Tanaka, H., Ishikawa, T., Togashi, T., Matsubara, S., Okayasu, Y., Watanabe, T., Takahashi, E.J., Midorikawa, K., Aoyama, M., Yamakawa, K., Owada, S., Iwasaki, A., Yamanouchi, K., High Power Laser Science and Engineering, Stabilization of a high-order harmonic generation seeded extreme ultraviolet free electron laser by time-synchronization control with electro-optic sampling, Nuclear Energy and Engineering, Nuclear and High Energy Physics, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials |
| title | Stabilization of a high-order harmonic generation seeded extreme ultraviolet free electron laser by time-synchronization control with electro-optic sampling |
| title_full | Stabilization of a high-order harmonic generation seeded extreme ultraviolet free electron laser by time-synchronization control with electro-optic sampling |
| title_fullStr | Stabilization of a high-order harmonic generation seeded extreme ultraviolet free electron laser by time-synchronization control with electro-optic sampling |
| title_full_unstemmed | Stabilization of a high-order harmonic generation seeded extreme ultraviolet free electron laser by time-synchronization control with electro-optic sampling |
| title_short | Stabilization of a high-order harmonic generation seeded extreme ultraviolet free electron laser by time-synchronization control with electro-optic sampling |
| title_sort | stabilization of a high-order harmonic generation seeded extreme ultraviolet free electron laser by time-synchronization control with electro-optic sampling |
| title_unstemmed | Stabilization of a high-order harmonic generation seeded extreme ultraviolet free electron laser by time-synchronization control with electro-optic sampling |
| topic | Nuclear Energy and Engineering, Nuclear and High Energy Physics, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials |
| url | http://dx.doi.org/10.1017/hpl.2015.9 |