An analysis of the SAW displacements in quartz and lithium niobate by X-ray topography

2013 Joint European Frequency and Time Forum &Amp; International Frequency Control Symposium (EFTF/IFC)

Ortéga

Snigirev

2013

Direct imaging of a 10 µm surface acoustic wave (SAW) propagation in a La 3 Ga 5 SiO 14 (LGS) crystal was obtained on the ESRF synchrotron radiation source in the saggital diffraction geometry using the Talbot effect. Imaging of the SAW wave field with the period 10 µm was observed at a distance corresponding to the Talbot distance. It is shown that the presence of the growth banding in the crystal does not influence on the propagation of acoustic wave-fields in the crystal nor does it cause a distortion of the SAW wave front.

Section: Introductionmentioning

confidence: 99%

X-ray imaging of the surface acoustic wave propagation in La<inf>3</inf>Ga<inf>5</inf>SiO<inf>14</inf> crystal

2013 Joint European Frequency and Time Forum &Amp; International Frequency Control Symposium (EFTF/IFC)

Ortéga

Snigirev

2013

X-ray imaging of the surface acoustic wave propagation in La3Ga5SiO14 crystal

Applied Physics Letters

Ortéga

Snigirev

2013

Direct imaging of a 10 μm surface acoustic wave (SAW) propagation in a La3Ga5SiO14 crystal was obtained on the European Synchrotron Radiation Facility (ESRF) synchrotron radiation source in the sagittal diffraction geometry using the Talbot effect. Imaging of the SAW wave field with the period 10 μm was observed at a distance corresponding to the half of the Talbot distance. It is shown that the presence of the growth banding in the crystal does not influence the propagation of acoustic wave-fields in the crystal nor does it cause a distortion of the SAW wave front.

Electromigration in Al thin films induced by surface acoustic waves: application to imaging

Tucoulou

Brunel

IEEE Trans. Ultrason., Ferroelect., Freq. Contr.

et al. 1999

The propagation of a high amplitude surface acoustic wave in an Al thin film induces a large-scale electromigration phenomenon resulting in a permanent etching of the acoustic field in the film. The etched patterns depend on the time of propagation and on the acoustic characteristics. Preliminary observations of a few grooved structures in Al films have been performed by different techniques. A first explanation of this phenomenon based on dynamical Grinfeld instabilities is proposed. By providing permanent pictures of acoustic fields emitted by transducers, this effect could be used to perform imaging of surface acoustic wave propagation.