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Molecular Measurement Lab
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The lab develops new methods for measuring molecules using lasers and synchrotron light.
AboutAbout the lab
Making what no one could measure measurable by anyone.
The Molecular Measurement Lab devises and develops new measurement methods for investigating the structure, reactions, and functions of molecules, and applies them to elucidate problems in materials science and engineering.
The lab aims to make it possible for anyone to measure molecules and materials in a wide variety of environments, using laser light, synchrotron light, and other tools.
Building on physical chemistry and analytical chemistry, the lab approaches solutions to energy and environmental problems.
On the lab's website, it is introduced under the name "Harata Lab."
Key terms
- Synchrotron light
- Intense light produced by an accelerator, also called synchrotron radiation. It includes X-rays and is used to investigate the state of materials
- Photothermal conversion
- A phenomenon in which the energy of light absorbed by a molecule is converted into heat. The molecule is studied by measuring this heat
- Correlation spectroscopy
- A method that links measurements in different wavelength ranges, such as X-ray absorption and ultraviolet-visible absorption, to investigate the state of a material
ResearchResearch themes
Based on the idea that "new measurement technologies create new science and foster new industries," the lab develops spectroscopic measurement methods for investigating the structure, reactions, and functions of molecules. Using laser light, synchrotron light, and other tools, it aims to solve problems in materials science and engineering with new approaches.
*Illustrative imageUltrasensitive analysis with lasers and synchrotron radiation
The lab irradiates materials with pulsed lasers (from nanosecond to femtosecond) and synchrotron light, and uses phenomena such as photothermal conversion, fluorescence, and photoionization to study the environment of molecules in liquids, at liquid surfaces, and at solid-liquid interfaces. Taking advantage of the high sensitivity of these phenomena to the target molecules, the lab develops them into ultrasensitive analytical methods.
*Illustrative imageRapid imaging of microplastics
The lab studies a method that records the temperature change under near-infrared irradiation with a commercially available thermal imaging camera, and uses it to distinguish and image different types of plastics. It has shown that plastics such as polyethylene terephthalate and polystyrene can be distinguished and imaged.
*Illustrative imageCorrelation spectroscopy of X-rays and ultraviolet-visible light
The lab is developing correlation spectroscopy that combines X-ray absorption with ultraviolet-visible absorption. Using polyvinyl alcohol films containing iodine as the target, it examines changes in the state of iodine through methods such as X-ray absorption measurements in an environment with controlled temperature and humidity.
MembersFaculty
The members of the Molecular Measurement Lab consist of faculty and doctoral and master's students.As of 2026
- ProfessorAkira Harata
- Assistant ProfessorToshio Ishioka
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: “SpectroscopyResearch 027” National Institute of Standards and Technology / Public domain (cropped)
- Ultrasensitive analysis with lasers and synchrotron radiation: “Synchrotron Solaris” Emmilia Kr / CC BY-SA 4.0 (cropped)
- Rapid imaging of microplastics: “Flocculation of Microplastics with Fenugreek Polymer” JosephTarletonTX / CC0 (cropped)
- Correlation spectroscopy of X-rays and ultraviolet-visible light: “UV-VIS Spektrometer EVOLUTION 220 von Thermo Scientific” MediaLab TH Köln / CC BY-SA 4.0 (cropped)
- Related lab (ナノ材料・デバイス科学研究室): “Transmission electron microscope (Morgagni 268D) 4pl” Pleple2000 / CC BY-SA 3.0 (cropped)
- Related lab (先端機能材料研究室): “Hypervelocity impact damage on silica glass” Jasalem21 / CC0 (cropped)
- Related lab (機能無機材料工学研究室): “Ceramic monoliths” S. Govender, H. Friedrich / CC BY-SA 4.0 (cropped)
- Related lab (ナノ物質合成科学): “Interaction of acetylcholinesterase with silver nanoparticle” Semen Yesylevskyy / CC BY 4.0 (cropped)
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