Real-time imaging of acoustic waves on a bulk acoustic resonator

High-Overtone Bulk Acoustic Resonator

Bulk Acoustic Wave High Overtone Resonator

the acoustic waves propagation losses in solid solutions of Rare Earth in Ittrium Aluminium Garnets. Matrix were Y^^^AlcO..« found few times lower than that of YAG matrix. The high overtone bulk acoustic wave resonators made of Y-, Lu Alr01o were studies. The Q c .5—X X 2 I £. factor 1.5 2.0*10 at 3.5 4.0 GHz was experimentally found. 1 INTRODUCTION The practical interest to the investigation o...

Bulk acoustic resonator based on piezoelectric ZnO belts.

In this paper, a bulk acoustic resonator based on ZnO belts is demonstrated. This device shows a great deal of promise in applications as an electronic filter and as a mass sensor. The fabricated device was characterized using vector network analysis, and both the first and third harmonics of resonance were observed at approximately 247 and 754 MHz, respectively. A one-dimensional Krimholt-Leed...

Determination of sediments diameter using acoustic waves

The use of acoustic waves in researches related to sea water is of most importance among scientists recently. Since these waves are the only waves, transmitted in water with lowest attenuation and high speed, they can be used in many scientific fields. The main goal of this research is to better understand the physics and mechanisms of sound-seabed interaction, including acoustic penetration, p...

Real Time Imaging of Surface Acoustic Waves on Crystals and Microstructures

The use of acoustic pulses to image materials is well-known in echography or sonar applications. We are extending this field by generating point-excited sound pulses on solid surfaces with ultrashort laser pulses and imaging the resulting surface wave propagation in real time. To see the tiny vibrations of the surface, smaller in amplitude than the dimensions of a single atom, we use another se...