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Analytical Chemistry Lab
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The lab confines light in nanoscale spaces to observe how molecules react.

AboutAbout the lab
Where light meets matter in the nanoworld
The Analytical Chemistry Lab studies how light and matter interact in tiny spaces on the scale of nanometers.
The lab fabricates metals and layered semiconductors with a precision of a few nanometers to create nanostructures that trap light.
It observes what happens there using time-resolved spectroscopy with femtosecond lasers.
From the interaction of light and matter, the lab aims to create new chemical measurement methods and chemical reactions controlled by light.
Key terms
- Plasmon
- A phenomenon in which electrons in a metal oscillate collectively in response to light. It makes it possible to confine light in nanoscale spaces
- Femtosecond
- One quadrillionth of a second. A guide to the speed at which bonds form and break inside molecules
NewsLab news
A paper by an Associate Professor and a student was accepted by Jpn. J. Appl. Phys.
A student received the Impressive Poster Award at the Asian and Oceanian Photochemistry Conference
A paper by a graduate was published in Communications Materials
A doctoral student received the Student Encouragement Award from the Plasmonic Chemistry Research Group
A joint study with Institute of Science Tokyo and other institutions was accepted by Sci. Adv.
ResearchResearch themes
The lab works on changing the electronic and vibrational states of molecules in the intense optical fields generated in nanoscale spaces. It aims to uncover the elementary processes of chemical reactions promoted by nanostructures through time-resolved spectroscopic measurements with femtosecond lasers.
View More ↗MembersFaculty
The members of the Analytical Chemistry Lab are faculty, students at the doctoral, master's, and undergraduate levels, and research students.As of 2026
- ProfessorKosei Ueno
- Associate ProfessorSou Ryuzaki
- Assistant ProfessorKeisuke Imaeda
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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: “Femtosecond laser spark” Smirnov Semen / CC BY 4.0 (cropped)
- Plasmon Chemistry and Nano-Optical Properties: “Propagating surface plasmon polaritons” Huilin Qing / CC BY-SA 4.0 (cropped)
- Related lab (構造化学研究室): “Human Oxy-Hemoglobin Protein” PDB code 2DN1 1.25 a resolution crystal structures of human haemoglobin in the oxy, deoxy and carbonmonoxy forms. Park, S.-Y., Yokoyama, T., Shibayama, N., Shiro, Y., Tame, J.R. (2006) J Mol Biol 360: 690-701 DOI: 10.1016/j.jmb. Image created using JSmol (Javascript) / CC0 (cropped)
- Related lab (量子化学研究室): “Benzene IBO” Alicesu / CC BY-SA 4.0 (cropped)
- Related lab (物理化学研究室): “Nanoscale Plasmonic Resonator Structures ( )” National Institute of Standards and Technology / Public domain (cropped)
- Related lab (理論化学研究室): “Potential Energy Surface for Water” AimNature / CC BY-SA 3.0 (cropped)
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