Yosuke Ito

Human activities are initiated by electrical signals, concurrently leading to the generation of associated biomagnetic fields. Unlike electrical signals, biomagnetic-field signals offer an advantage in source localization accuracy because the permeability within different anatomical regions remains consistent. The magnetic fields generated by organs such as the heart, brain, spinal cord, muscles, and peripheral nerves contain valuable information related to human health, psychological states, attention, cognition, and more.

My research focuses on the development of extremely high-sensitivity magnetic sensors, particularly optically pumped magnetometers (OPMs), and the application of quantum sensing technologies in biomagnetic-field measurements and magnetic resonance imaging (MRI). The photographs below show our OPM module and its application in measuring visually evoked magnetic fields, offering a resolution of less than 20 fT/Hz1/2.

Additionally, I am exploring the potential of magnetic sensors using nitrogen-vacancy (NV) centers within diamonds for biomagnetic-field measurements and developing multimodal approaches that integrate MRI with magnetoencephalography (MEG).