| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2024-12-04 |
| タイトル |
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タイトル |
Laser output performance and temporal quality enhancement at the J-KAREN-P petawatt laser facility |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Kiriyama Hiromitsu
Miyasaka Yasuhiro
Kon Akira
Nishiuchi Mamiko
Sagisaka Akito
Sasao Hajime
Alexander Pirozhkov
Fukuda Yuji
Ogura Koichi
Kondo Kotaro
Nakanii Nobuhiko
Mashiba Yuji
NicholasPeter Dover
Chang Liu
Kando Masaki
Stefan Bock
Tim Ziegler
Thomas Puschel
Hans-Peter Schlenvoigt
Karl Zeil
Ulrich Schramm
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
We describe the output performance and temporal quality enhancement of the J-KAREN-P peta-watt laser facility. After wavefront correction using a deformable mirror, focusing with an f/1.3 off-axis parabolic mirror delivers a peak intensity of 1022 W/cm2 at 0.3 PW power levels. Tech-nologies to improve the temporal contrast are investigated and tested. The origins of pre-pulses generated by post-pulses are identified and the elimination of most pre-pulses by removal of the post-pulses with wedged optics is achieved. A cascaded femtosecond optical parametric amplifi-er based on the utilization of the idler pulse rather than the signal pulse is developed for the com-plete elimination of the remaining pre-pulses. The orders of magnitude enhancement of the pedes-tal before the main pulse are demonstrated by using a higher surface quality of the convex mirror in the Offner stretcher. A single plasma mirror is installed in the J-KAREN-P laser beam line for further contrast improvement of three orders of magnitude. The above developments have ena-bled a high contrast of approximately 1015 up to 40 ps before the main pulse. We also briefly in-troduce the digital transformation (DX), such as the remote and automated operation of the J-KAREN-P lasers system. |
| 書誌情報 |
PHOTINICS
巻 10,
号 9,
p. 997,
発行日 2023-08
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| 出版者 |
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出版者 |
MDPI |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
1749-4893 |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.3390/photonics10090997 |
