X-ray topography analysis of acoustic wave fields in the SAW-resonator structures

IEEE Trans Ultrason Ferroelectr Freq Control. 2005 Nov;52(11):2081-7. doi: 10.1109/tuffc.2005.1561678.

Abstract

The formation of fields of standing surface acoustic waves (SAW) in LiNbO3 and La3Ga5SiO14 (LGS) crystals was studied by high-resolution topography method on a laboratory X-ray source. The fields of standing SAW were formed using SAW-resonator structures consisting of interdigital transducer (IDT) and reflecting gratings. The SAW amplitudes and power flow angles were measured by X-ray topography, diffraction in acoustic beam was visualized, and the SAW interaction with the crystal structure defects was studied.