T. Hesjedal et G. Behme, AFM observation of surface acoustic waves emitted from single symmetric SAW transducers, IEEE ULTRAS, 48(3), 2001, pp. 641-642
Citations number
11
Categorie Soggetti
Optics & Acoustics
Journal title
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL
We report the first experimental observation of surface acoustic waves (SAW
s) launched from a single symmetric SAW transducer, employing scanning acou
stic force microscopy (SAFM). SAFM is a simple technique for the imaging of
complex interdigital transducer (IDT) radiation patterns with nanometer la
teral resolution, We demonstrate submicron lateral resolution and high sens
itivity by investigating a single excitation element on a weakly coupling s
ubstrate (GaAs), visualizing the launched wave and second-order effects.