Fast time-domain laser Doppler vibrometry characterization of surface acoustic waves devices

摘要

Highlights ? A B-Scan allows revealing key issues of SAW device mechanical behavior. ? This 1D technique is not appropriate for full dimension 2D SAW devices. ? A series of 1D B-Scans is time-saving and of same efficiency as a 2D C-Scan. ? A multiline B-Scan is more versatile for graphical analysis. Abstract This paper explores experiments and an in-depth analysis of surface acoustic waves (SAW) imaging using scanning laser Doppler vibrometry. Optical measurements allow visualization of wa