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Hasegawa Lab
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A lab that uses light and X-rays to study everything from quantum computers to bridge inspection.
AboutAbout the lab
Creating new functions with the power of light and matter.
The Hasegawa Lab studies how to create new functions by using the interaction between light and matter.
Its foundation is quantum beam technology that includes light, such as laser cooling, photonuclear reactions, and X-rays.
Its themes range widely, from quantum computers and isotope analysis to infrastructure diagnosis for bridges, production of medical radioisotopes, and laser processing.
The lab designs and builds many of the instruments used in its experiments itself.
Key terms
- Ion trap
- A device that uses electric fields to confine electrically charged atoms (ions) in a small space.
- Isotope
- Atoms of the same element that have different numbers of neutrons in their nuclei. Those that emit radiation are called radioisotopes.
- Non-destructive testing
- An inspection that examines the internal condition of an object, such as flaws and cracks, without damaging it.
NewsLab news
Social cooperation program established with ATOX Co., Ltd.
Paper: Observation of isotopologues of atmospheric methane published
ResearchResearch themes
Using advanced technologies such as lasers and mass spectrometry, the lab develops systems that can control and detect atoms and ions one by one. It aims for applications in a wide range of fields, including nuclear energy, quantum computers, medicine, and environmental safety.
*Illustrative imageQuantum Computers
The lab studies ion-trap quantum computers, which use cooled ions as qubits. Toward sympathetic cooling, which keeps the ions cooled even during computation, it investigates the motion of different types of ions.
*Illustrative imageIsotope Analysis in the Environment and in Living Bodies
The lab develops new analytical instruments that use lasers to measure radioactive substances and trace amounts of isotopes. These instruments are expected to contribute to the safe operation of nuclear facilities, environmental measurement, and medicine.
*Illustrative imageX-ray Inspection of Bridges
The lab works on non-destructive testing that images the inside of bridge concrete, using a portable X-ray source built around a compact accelerator. It is also advancing the use of AI to diagnose the images obtained.
*Illustrative imageProduction of Medical Radioisotopes
The lab is carrying out proof-of-principle work on producing, with an accelerator, radioisotopes used in cancer treatment (targeted alpha therapy). It considers everything from the design of the irradiation equipment and safety management to chemical separation after irradiation.
MembersFaculty
The Hasegawa Lab consists of faculty members, doctoral, master's, and undergraduate students, project researchers, academic specialist staff, and secretaries.As of 2026
- ProfessorHasegawa ShuichiPublications ↗
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: “Table GWMorley” Gavin Morley / CC BY-SA 4.0 (cropped)
- Quantum Computers: “Planar Ion Trap ( )” National Institute of Standards and Technology / Public domain (cropped)
- Isotope Analysis in the Environment and in Living Bodies: “CRIS experiment” Brice, Maximilien; Ordan, Julien Marius / CC BY 4.0 (cropped)
- X-ray Inspection of Bridges: “Myoko-ohashi Bridge” Qurren / CC BY-SA 3.0 (cropped)
- Production of Medical Radioisotopes: “KEK Electron-Positron Linac P9024765” Kestrel / CC BY-SA 4.0 (cropped)
- Related lab (Ishikawa-Sato Lab): “The Art of Science 2018 finalists ( )” Oak Ridge National Laboratory（Jason Richards） / CC BY 2.0 (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 (Shimazoe Lab): “PET Normal brain” US National Institute on Aging, Alzheimer's Disease Education and Referral Center / Public domain (cropped)
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