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Updated: May 23, 2026

A Stable Phantom Material for Optical and Acoustic Imaging
Published on: June 16, 2023
Liquid sensor utilizing a regular phononic crystal with normal incidence of sound
Ralf Lucklum1, Mikhail Zubtsov, Manzhu Ke
1Institute for Micro and Sensor Systems (IMOS), Otto-von-Guericke-University Magdeburg, Magdeburg,Germany. ralf.lucklum@ovgu.de
Abstract:
A phononic crystal device is investigated as sensor platform utilizing resonant transmission. Here, we use a phononic crystal plate consisting of a solid matrix and liquidfilled holes. The device is fully immersed into the liquid in such a way that the incidence direction of sound is normal to the plate. A characteristic transmission peak, calculated using finite-difference time-domain (FDTD) and determined with two different experimental setups, has been found to strongly depend on the liquid sound velocity. The peak maximum frequency serves as measure for liquid composition.
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