Study by stroboscopic X-ray topography of the effects of the crystal defects on the modes of high performance resonators

This paper considers the effect of dislocations on the vibration modes of thickness shear resonator and SAW delay line using quartz. It is observed that they are at the origin of mode shape modifications and non linear effects. The principal mechanism of interaction seems to be related to the creation of a stained bias state increasing the non-linear effects.