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Laser Astrophysics (LAP) Lab
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An astrophysics lab that reproduces phenomena of the universe in the laboratory with high-power lasers.
AboutAbout the lab
Testing the fundamental processes of the universe with high-power lasers
The Laser Astrophysics group (LAP) is a lab that uses high-power lasers to test, in the laboratory, the fundamental processes of phenomena that occur in space.
Its targets are collisionless shocks, cosmic-ray particle acceleration, and magnetic field generation, which are seen in supernova remnants, active galactic nuclei, and solar flares.
The lab pursues these through both experiments with power lasers such as Gekko XII and LFEX, and theory and simulation.
Students belong to the Department of Earth and Space Science, Graduate School of Science.
Key terms
- Collisionless shock
- A shock wave formed by electromagnetic fields rather than by collisions between particles. It is seen in supernova remnants and elsewhere.
- Cosmic rays
- Particles with extremely high energy that fly through space. They are thought to be accelerated by shock waves and other processes.
- Power laser
- A high-power, high-intensity laser. This lab uses facilities such as Gekko XII and LFEX.
ResearchResearch themes
Advances in high-power, high-intensity laser technology have made it possible to reproduce explosive phenomena in space and ultrahigh-pressure states inside planets. The lab aims to elucidate space and planetary physics by reproducing in the laboratory explosive phenomena and cosmic-ray acceleration by collisionless shocks.
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MembersFaculty
Members of the Laser Astrophysics group (LAP) consist of faculty, researchers, and master's students.As of 2026
- ProfessorTakayoshi Sano
- Associate ProfessorYoichi Sakawa
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Supernova remnant CTB 37A” Image credit: X-ray: NASA/CXC/Morehead State Univ/T.Pannuti et al; Radio: Molonglo Obs. Synthesis .; Infrared: NASA/JPL-Caltech / Public domain (cropped)
- Reproducing explosive phenomena and cosmic-ray acceleration: “Tycho's Supernova Remnant– Tycho's Remnant Provides Shocking Evidence for Cosmic Rays (The hot, expanding debris of a supernova observed in )” Smithsonian Institution / Public domain (cropped)
- Related lab (極限プラズマ
（KGP） ): “The moment a high-power laser pulse interacts with a target to produce a plasma is captured at the Vulcan PW facility ( )” Science and Technology Facilities Council / CC BY-SA 2.0 (cropped) - Related lab (超
高強度場科学 （LF） ): “Plasma without and with magnetic field” Gerritse / CC BY-SA 3.0 (cropped) - Related lab (超
高圧科学 （HPS） ): “Illustration of Shock Wave Around Millisecond Pulsar (2005-47tuc-more-1 - 47tuc ill)” (Illustration: NASA/CfA/S.Bogdanov) / Public domain (cropped) - Related lab (非平衡輻射プラズマ理論
（THR） ): “High Power Laser Energy Research Facility drawing” Colin N. Danson et al. / CC BY 4.0 (cropped)
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