{"id":51,"date":"2018-08-20T17:30:39","date_gmt":"2018-08-20T08:30:39","guid":{"rendered":"http:\/\/www-wp22.ile.osaka-u.ac.jp\/page-0\/page-0\/"},"modified":"2025-07-02T10:23:37","modified_gmt":"2025-07-02T01:23:37","slug":"symposium","status":"publish","type":"page","link":"http:\/\/www-wp22.ile.osaka-u.ac.jp\/eng\/collaboration\/symposium\/","title":{"rendered":"OPTO Symposium on Photon and Beam Science"},"content":{"rendered":"

OPTO2025 Symposium on Photon and Beam Science<\/h2>\n
\n
The OPTO2025 Symposium on Photon and Beam Science was held on June 25\u201326, 2025, at the Convention Center, The University of Osaka (Suita Campus). Since 2017, the OPTO Symposium has been jointly organized by the Institute of Laser Engineering (ILE), The University of Osaka, and the Kansai Institute for Photon Science (KPSI), National Institutes for Quantum Science and Technology (QST). The symposium aims to strengthen collaboration between the two institutions and accelerate research and development in laser and photon science. This year’s event marked the 10th anniversary of the joint symposium and was held exclusively at the Suita Campus convention facility. It attracted approximately 160 participants.<\/p>\n
The symposium featured six invited talks covering a broad range of topics in laser and photon science:<\/p>\n
On Day 1, Dr. Nozomi Tanaka (ILE, U of Osaka) presented a study on the optimization of hydrogen radicals induced by intense extreme ultraviolet radiation for resolving bottlenecks in EUV lithography. Dr. Masaki Tsubouchi (KPSI, QST) introduced a quantum biological study of photosynthetic light-harvesting proteins through the integration of genetic recombination and ultrafast spectroscopy. Dr. Kazunori Serita (Graduate School of Information, Production and Systems, Waseda University) gave a talk on the development of a non-destructive 3D terahertz imaging technique for the cochlea, aimed at the early diagnosis of ear diseases.<\/p>\n
On Day 2, Dr. Natsumi Iwata (ILE, U of Osaka) presented a theoretical study on dense plasma heating by a kJ petawatt laser. Dr. Noboru Hasegawa (KPSI, QST) discussed the development and social implementation of infrastructure inspection technologies using high-power lasers. Dr. Hiromitsu Kiriyama (KPSI, QST) reported on the current status and future prospects of the J-KAREN-P upgrade and ion acceleration experiments. All talks featured recent data and were followed by active discussions and Q&A sessions from the audience.<\/p>\n
In the PLDX Activity Report, Dr. Shinsuke Fujioka (ILE, U of Osaka) shared recent developments involving digital technologies in laser applications.<\/p>\n
At the Power Laser Community Meeting, Dr. Tetsuya Kawachi (Vice Director, QST) served as coordinator. Dr. Ryosuke Kodama (Director, ILE, U of Osaka) outlined Japan\u2019s roadmap toward 2026. Prof. Shigemori (ILE) discussed plans for upgrading key facilities\u2014Gekko XII, LFEX, SENJU, tritium targets, and the laser irradiation area in Building L\u2014using MEXT\u2019s 2024 supplementary budget. Dr. Hajima (Director, KPSI) presented findings on the cooling issues of mirrors and diffraction gratings used in high-repetition-rate, high-power lasers. Each topic was followed by lively discussions.<\/p>\n
The poster session featured over 140 presentations. Many attendees enjoyed reconnecting with colleagues and alumni, creating a lively and warm atmosphere.<\/p>\n
The 19th Kondo Prize Ceremony of Osaka University was held during the symposium.
\nThe following researchers received the awards:<\/p>\n
In the evening of the first day, a memorial gathering for the late Prof. Kuniokii Mima was held at the Senri Hankyu Hotel, accompanied by a commemorative lecture and dinner. It was a meaningful opportunity to reconnect with esteemed senior colleagues and reflect on Prof. Mima’s immense contributions. Many attendees expressed their renewed motivation to carry on his legacy.<\/p>\n

Program<\/span><\/h3>\n
\uff0aOPTO2025 Symposium Program is here<\/a><\/p>\n
June 25 (Wed.) <\/strong><\/span><\/h3>\n
\u30fbInvited Talk 1: Nozomi Tanaka (Institute of Laser Engineering, The University of Osaka)
\nOptimization of hydrogen radicals induced by intense extreme ultraviolet radiation for the EUVL bottleneck issue solutions<\/p>\n
\u30fbInvited Talk 2: Masaaki Tsubouchi (Kansai Institute for Photon Science, QST)
\nQuantum biological study of light-harvesting proteins in photosynthesis by combining genetic recombination and ultrafast spectroscopy<\/p>\n
\u30fbInvited Talk 3: Kazunori Serita (Graduate School of Information, Production and Systems, Waseda University)
\nDevelopment of non-destructive 3D terahertz imaging technology of the cochlea for early diagnosis of ear diseases<\/p>\n
\u30fbPoster session 1<\/p>\n
<\/p>\n
June 26 (Thu.)<\/strong><\/span><\/h3>\n
\u30fbPoster session 2<\/p>\n
\u30fbInvited Talk 4: Natsumi Iwata (Institute of Laser Engineering, The University of Osaka)
\nTheoretical study on dense plasma heating by kJ petawatt laser<\/p>\n
\u30fbInvited Talk 5: Noboru Hasegawa (Kansai Institute for Photon Science, QST)
\nDevelopment and social implementation of infrastructure inspection technology using high-power lasers<\/p>\n
\u30fbInvited Talk 6: Hiromitsu Kiriyama (Kansai Institute for Photon Science, QST)
\nCurrent status and prospects of the J-KAREN-P upgrade and ion acceleration experiments<\/p>\n
\u30fbPLDX Activity Report: Shinsuke Fujioka (Institute of Laser Engineering, The University of Osaka)<\/p>\n
\u30fbCommunity Meeting<\/p>\n
The 19th Kondo Prize, The University of Osaka<\/strong><\/span><\/h4>\n
<Research Paper Award (U30)><\/strong><\/p>\n
\n
Kaoru Sugimoto (Kyoto University)
\n\u201cPositron Generation and Acceleration in a Self-Organized Photon Collider Enabled by an Ultraintense Laser Pulse\u201d<\/em><\/li>\n
Kentaro Sakai (National Institute for Fusion Science)
\n\u201cDevelopment of time-resolved measurement method of multi-terahertz pulsed electric field vector waveforms\u201d<\/em><\/li>\n<\/ul>\n
<Research Paper Award (U40)><\/strong><\/p>\n
\n
Takayuki Kurihara (The University of Tokyo)
\n\u201cDiscovery of ultrafast spontaneous spin switching in an antiferromagnet by femtosecond noise correlation spectroscopy\u201d<\/em><\/li>\n<\/ul>\n
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<\/p>\n
<\/p>\n
2025 Best Poster Award <\/strong><\/span><\/p>\n
\u30fb Mr. Yuta Tsutsumi (Kyoto Institute of Technology) (Photo in the middle \/ represented by Dr. Ishino in the photo)<\/p>\n
\u30fb Dr. Bentley Phillip David (KPSI, QST) (Photo on the left)<\/p>\n
$\"\"$ <\/p>\n\n\t\t