G. Behme et al., Spatially resolved measurement of transverse surface acoustic waves for the investigation of elastic properties, SURF INT AN, 27(5-6), 1999, pp. 558-561
This paper reports new developments in the field of spatially resolved surf
ace acoustic wave (SAW) analysis. With scanning acoustic force microscopy (
SAFM) the investigation of SAW phenomena with lateral resolution of the sca
nning force microscope became possible. This technique was limited to SAW m
odes with an out-of-plane oscillation component. Recently, we demonstrated
that purely in-plane polarized SAWs can also be investigated by using a non
-linear coupling to the cantilever's torsional movement. Now it is possible
to measure the SAW phase velocity dispersion for any given SAW polarizatio
n. We used SAFM for investigation of the layered system SiO2 on ST-cut quar
tz. Copyright (C) 1999 John Whey & Sons, Ltd.