The conference is coming up soon. The program has been updated, so please take a look.
We look forward to seeing you in Yokohama.
International Conference on
High Energy Density Laboratory Astrophysics (HEDLA) and
High Energy Density Science (HEDS)
Apr 20–24, 2026, Yokohama, Japan
We are pleased to announce the 15th International Conference on High Energy Density Laboratory Astrophysics (HEDLA), to be held April 20–24, 2026, at Pacifico Yokohama in Yokohama, Japan. This conference will be co-located with the International Conference on High Energy Density Science (HEDS) as part of the Optics and Photonics International Congress (OPIC).
HEDLA is a topical conference series that began in 1996 and has run approximately every other year since then. The goal is to use or develop laboratory experiments to understand high-energy-density phenomena in the universe. HEDS covers the high-energy-density sciences with high-power lasers and their applications.
Past Meetings:
Scope:
-
High-power lasers and pulsed-power facilities enable the creation of extreme states of pressure and temperature well beyond those attainable under terrestrial conditions. Such high-energy-density states provide a powerful platform for exploring fundamental processes in astrophysical plasmas, which remain among the most compelling subjects in modern science. Laboratory astrophysics, in particular, offers a unique and complementary research methodology, advancing our understanding of astrophysical phenomena through controlled experiments in conjunction with astronomical observations and theoretical or simulation studies, while fostering collaboration across diverse scientific communities. Proposed Topics include, but are not limited to, the following areas of high-energy-density laboratory astrophysics:
Proposed Topics:
- Fluid and Collisional Plasma Dynamics: jets, turbulence, dynamos, instabilities
- Collisionless Plasmas and Particle Acceleration: shocks, magnetic reconnection, kinetic processes
- Transport and Atomic/Radiative Processes: heat conduction, anomalous resistivity, diffusion, radiative transport, opacity, spectral line shapes, photoionization
- Dense Plasma Physics: equations of state, warm dense matter, planetary interiors
- New Frontiers in High-Energy-Density Science: quantum electrodynamics effects, pair plasmas, nuclear astrophysics, emerging experimental facilities, and advanced computing
Host Organization:
Institute of Laser Engineering , The University of Osaka
Optics & Photonics International Congress
Supported by
Japan Society for the Promotion of Science (JSPS)
Core-to-Core Program & International Leading Research
The University of Osaka
Institute of Open and Transdisciplinary Research Initiatives
- Sessions will begin at 9:00 on April 20 (Mon)
- HEDLA/HEDS Dinner on April 21 (Tue)
- OPIC Conference Banquet on April 22 (Wed)
- Sessions will end around 17:00 on April 24 (Fri)
Scientific Program:
Final Program [html/ pdf] (Updated on Apr 16)
Timetable [pdf]
- Invited Talk: 20 min talk + 5 min discussion
- Contributed Talk: 12 min talk + 3 min discussion
- Poster panel size is 210 cm (height) x 90 cm (width).
Confirmed Invited Speakers:
Fabio BACCHINI
Xue-Ning BAI
Archie BOTT
Tilo DOPPNER
Toshihiro FUJII
Gianluca GREGORI
Fan GUO
Guang-yue HU
Hantao JI
Timothy JOHNSON
Daiji KATO
Yohei KAWAZURA
Yasuhiro KURAMITSU
Martin LEMOINE
Guillaume LOISEL
Sabrina NAGEL
Chang-Hee NAM
Shuichi MATSUKIYO
Stefano MERLINI
Yosuke MIZUNO
Luca ORUSA
Gabriel RIGON
Dongsu RYU
Haruhiko SAITO
Joao SANTOS
Derek SCHAEFFER
Masaomi TANAKA
Masahiro TSUJIMOTO
Petros TZEFERACOS
Vicente VALENZUELA-VILLASECA
Suming WENG
Weipeng YAO
Dawei YUAN
Tim ZIEGLER
Presentation Number (Invited, Contributed, and Poster) by Country/Region:
Total ( I C P ) Japan 48 ( 8 11 29 ) USA 26 ( 10 10 6 ) France 18 ( 4 9 4 ) China 8 ( 5 2 1 ) Korea 6 ( 2 1 3 ) UK 5 ( 3 2 0 ) Philippines 5 ( 0 0 5 ) Taiwan 3 ( 0 0 3 ) Germany 2 ( 1 1 0 ) Israel 2 ( 0 1 1 ) Poland 2 ( 0 1 1 ) Belgium 1 ( 1 0 0 ) Czech 1 ( 0 1 0 ) Total 126 ( 34 39 53 )
Submission:
Please submit your abstract via the OPIC submission site.
- Proceed to “Submit your Paper Online.” After creating an account, you will be able to upload your abstract.
- Select “HEDLA/HEDS2026” as the conference name.
- Abstracts are limited to 1 page and should be formatted based on the HEDS Abstract Template.
- Abstracts must be submitted in PDF format.
- Abstracts are text only. No figures, images, or tables are allowed.
Deadline:
December 22, 2025
January 5, 2026 (extended)
Registration Site:
OPIC registration site
The registration page is now open.
Registration Fee:
Registration Type On/Before April 3, 2026 After April3, 2026 General JPY 75,000 JPY 82,000 Student/Retiree JPY 25,000 JPY 29,000
- 1 USD ≈ 155 JPY, 1 EUR ≈ 175 JPY
- The HEDLA/HEDS Dinner and OPIC Conference Banquet fees are NOT included in the regular or student registrations.
- For early-bird registration, please complete your payment by April 3, 2026.
Conference Site:
Pacifico Yokohama Conference Center
1-1-1, Minato Mirai, Nishi-ku, Yokohama 220-0012, Japan (Map)
Access:
Pacifico Yokohama's Guide
- If you are arriving by air, Haneda Airport is the most convenient option. (Access by Air)
There are many hotels within walking distance of the conference venue. We have selected several major hotels to make your choice easier. Please check the Recommended Hotel List.
We will hold the HEDLA/HEDS Dinner on Tuesday, April 21 in a standing buffet (casual party) style. The participation fee is planned to be around 3,000 JPY. More details will be announced later. If you are planning to join, please let us know in advance using the form below, as we would like to have a rough headcount.
Note: This dinner is different from the OPIC Banquet held on Wednesday, April 22 — please be careful not to mix them up.
- Registration Form
- Dinner party venue is La Cocorico Yokohama Akarenga Souko
- The participation fee (dinner + drinks) is 2,000 JPY (1,000 JPY for students).
- Payment will be collected at the conference venue. Please prepare cash.
- The list of registered participants is available here.
- On-site registration will also be possible. However, it would be very helpful for us to know the number of participants in advance.
We are planning a boat tour to enjoy the spectacular factory nightscape on Thursday, April 23. The tour will begin around 6:30 p.m. and last approximately two hours, offering a unique opportunity to view the illuminated industrial complexes of the Kawasaki area from the sea. We are also planning to serve a light meal on board during the cruise. The participation fee is expected to be around 5,000 JPY. If you wish to join, please submit your application using the form below.
- Registration Form
- Please note that the tour will be held only if at least 40 participants express interest, which will allow us to reserve the boat as a private charter. The maximum number of participants will be approximately 70, so we encourage those who are interested to register as early as possible.
- The participation fee is 4,000 JPY.
- Payment will be collected at the conference venue. Please prepare cash.
- As more than 40 participants have expressed interest, we will proceed with the boat tour. The current list of registered participants is available here.
- There is still some availability, so if you are interested, we would be happy to have you join. Please feel free to register.
Conference Chair:
Ryosuke KODAMA (U Osaka)
Takayoshi SANO (U Osaka)
HEDLA Scientific Organizing Committee:
Mandy BETHKENHAGEN (LULI)
Dan CASEY (LLNL)
Alexis CASNER (U Bordeaux)
Andrea CIARDI (Sorbonne U)
Gilbert COLLINS (U Rochester)
Tilo DOPPNER (LLNL)
Forrest DOSS (LANL)
Frederico FIUZA (IST)
Gianluca GREGORI (U Oxford)
Natsumi IWATA (U Osaka)
Hantao JI (Princeton U)
Maria Gatu Johnson (MIT)
Marcus KNUDSON (SNL)
Ryosuke KODAMA (U Osaka)
Carolyn KURANZ (U Michigan)
Ivan OLEYNIK (U South Florida)
Hye-Sook PARK (LLNL)
Tomek PLEWA (FSU)
Bruce REMINGTON (LLNL)
Dmitri RYUTOV (LLNL)
Youichi SAKAWA (U Osaka)
Takayoshi SANO (U Osaka)
Derek SCHAEFFER (UCLA)
Petros TZEFERACOS (U Rochester)
Feilu WANG (CAS)
Local Organizing Committee (Program Committee):
Masanori IWAMOTO (Kobe U), King Fai Farley LAW (U Osaka), Yutaka OHIRA (U Tokyo), Youichi SAKAWA (U Osaka), Takayoshi SANO (U Osaka; Chair), Shuta TANAKA (Aoyama Gakuin U)
hedla2026 (at) ile.osaka-u.ac.jp
http://www.ile.osaka-u.ac.jp/hedla2026/