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Ishikawa-Sato Lab
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The lab explores the interaction between laser light and matter through theory and computation.
AboutAbout the lab
Unraveling the behavior of light and matter through computation
The Ishikawa Lab studies, through theory and simulation, the phenomena that laser light induces in atoms, molecules, and solids, as well as their applications.
The lab deals with the motion of electrons on attosecond timescales, which are extremely short, and with the mechanisms by which intense lasers process materials.
By developing new computational methods and simulation programs, the lab works on explaining experimental results and predicting new phenomena.
The lab conducts joint research with universities and research institutions in Japan and abroad, including TU Wien and Tohoku University.
Key terms
- Attosecond
- An extremely short unit of time: one quintillionth of a second (10⁻¹⁸ seconds)
- First-principles calculation
- A method of calculating the behavior of matter from the fundamental laws of quantum mechanics, without relying on empirical values
- High-order harmonics
- Light emitted from matter exposed to an intense laser, with frequencies many times higher than that of the original light
NewsLab news
A doctoral student received the Roger Kelly Award at SLIMS
Held an admissions information session for the Department of Nuclear Engineering and Management (FY2027 entrance exam)
A master's student won the Best Student Poster Award at Q-BASIS 2024
A doctoral student won the Best Poster Award at the U-Tokyo-SJTU Symposium
Prof. Ishikawa was named a Fellow by the Atomic Energy Society of Japan
ResearchResearch themes
The lab studies the effects that intense, ultrashort laser pulses and free-electron lasers induce in matter, along with their applications, using theory and first-principles calculations. From atoms and molecules to solids, it investigates the interaction between laser light and matter based on quantum mechanics.
*Illustrative imageAtoms and molecules in intense laser fields
Atoms and molecules exposed to intense lasers show highly nonlinear behavior, such as electrons being ejected. The lab develops methods and programs that use quantum mechanics to calculate the motion of electrons and nuclei in these systems.
*Illustrative imageIntense lasers and solids
The lab uses calculations to investigate what happens in solids exposed to intense lasers and what kind of light (high-order harmonics) they emit. It is also developing a laser processing simulator that proposes processing conditions using simulation and artificial intelligence.
*Illustrative imageQuantum simulation with quantum computers
The lab has begun developing methods that use quantum computers without error correction (NISQ devices) to simulate the Schrödinger equation describing the time evolution of quantum many-body systems.
MembersFaculty
The Ishikawa Lab consists of faculty members, project researchers, and doctoral and master's students.As of 2026
- ProfessorKenichi IshikawaPublications ↗
- Associate ProfessorTakeshi SatoPublications ↗
- Associate ProfessorKazuyuki SakauePublications ↗
- Project Assistant ProfessorTomoya NaitoPublications ↗
VoicesStudent voices
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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: “The Art of Science 2018 finalists ( )” Oak Ridge National Laboratory（Jason Richards） / CC BY 2.0 (cropped)
- Atoms and molecules in intense laser fields: “Extreme ultraviolet (EUV) frequency comb ( )” National Institute of Standards and Technology / Public domain (cropped)
- Intense lasers and solids: “Laserschweissen” TRUMPF GmbH + Co. KG, Ditzingen / TRUMPF at German Wikipedia / CC BY-SA 3.0 (cropped)
- Quantum simulation with quantum computers: “Quantum Computer with Dispersive Background” OJB Quantum / CC BY 4.0 (cropped)
- Related lab (Yamashita Lab): “17 mCi Ac-225(NO3)3 at ORNL by Dr Andrew R Burgoyne” Dr Andrew R. Burgoyne / CC BY-SA 4.0 (cropped)
- Related lab (Sakaue Lab): “KEK Electron-Positron Linac P9024765” Kestrel / CC BY-SA 4.0 (cropped)
- Related lab (Hasegawa Lab): “Table GWMorley” Gavin Morley / CC BY-SA 4.0 (cropped)
- Related lab (Shimazoe Lab): “PET Normal brain” US National Institute on Aging, Alzheimer's Disease Education and Referral Center / Public domain (cropped)
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