Abstract
We present a study that quantitatively measures the amplitude of propagating surface acoustic waves using
an optical frequency comb. Because the vibration amplitude of these waves is on the order of several
tens of picometers, it is crucial to minimize measurement errors caused by the optical equipment’s vibration
effects. This paper outlines an experimental setup designed to reduce such errors, enabling precise
measurement of surface vibrations in the tens of picometers range through optical frequency comb spectroscopy.
Additionally, we will share preliminary findings indicating that the energy from surface acoustic
waves can be converted into the energy of ferromagnetic resonance in a thin nickel film sample.
