[9a-C212-1~12] CS.3 Code-sharing session of 3.5 &3.7

11:45 AM - 12:00 PM JST(2:45 AM - 3:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[9a-C212-11] High-precision measurement of picometer surface vibrations using Time Programmable Frequency Comb

〇Kento Tanaka¹, Kazuki Maezawa¹, Shinichi Watanabe¹ (1.Keio Univ.)

Keywords:

optical measurement,frequency comb

This study aimed to improve the efficiency and accuracy of dual-comb spectroscopy using a time-programmable frequency comb. By employing the time-programmable frequency comb technique, it is possible to repeatedly measure only a short segment—just 0.6%—of the interferogram signal. This enables measurements with an efficiency more than 100 times greater than that of conventional dual-comb spectroscopy, promising faster and more accurate measurements. We applied this method to the measurement of surface acoustic wave amplitude and conducted a comparative evaluation with conventional methods.