Thermally Tunable Surface Acoustic Wave Cavities.

Andre Luiz Oliveira Bilobran,Alberto Garcia-Cristobal,Paulo Ventura Dos Santos,Andres Cantarero,Mauricio Morais de Lima

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control（2020）

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摘要

We experimentally demonstrate the dynamical tuning of the acoustic field in a surface acoustic wave (SAW) cavity defined by a periodic arrangement of metal stripes on LiNbO3 substrate. Applying a dc voltage to the ends of the metal grid results in a temperature rise due to resistive heating that changes the frequency response of the device up to 0.3%, which can be used to control the acoustic tran...

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关键词

Surface acoustic waves,Metals,Substrates,Voltage measurement,Computational modeling,Frequency control

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