Keio University

Successfully Determining Vibration Amplitude with a Precision of Just Four-Trillionths of a Meter—Capturing the Minute Movements of Surface Acoustic Wave Devices

Publish: October 05, 2022
Public Relations Office

2022/10/05

Keio University

A research group from Keio University—comprising Ayaka Iwasaki (a second-year master's student), Daichi Nishikawa (a third-year student in the Doctoral Programs), and Shoma Tatsuno (who completed his master's degree in March 2021) from the Graduate School of Science and Technology, as well as Senior Assistant Professor Makoto Okano (at the time of the research), Assistant Professor Kazuto Yamanoi, Professor Yukio Nozaki, and Professor Shinichi Watanabe from the Department of Physics, Faculty of Science and Technology—has successfully and quantitatively determined the displacement of extremely small vibration phenomena occurring on the surface of surface acoustic wave devices with a precision of just four-trillionths of a meter. This achievement is expected to be utilized for the accurate characterization of future electrical and magnetic devices that use surface acoustic waves.

This research was published in "APL Photonics" on October 3, 2022 (local time) and was selected as an Editor's Pick. It was also featured on Scilight (science highlight), a site that introduces the most interesting research from the American Institute of Physics.

Please see below for the full press release.

Press Release (PDF)