Dispersion profiles and surface acoustic wave attenuation characteristics of ring-shaped phononic crystals are investigated as a function of the core pillar height. Finite element method simulations are carried out for both band analyses and transmission spectra calculations. The results reveal that increasing core pillar height results in a decrement in the local resonance band frequency and the corresponding transmission peaks. The obtained dispersion profiles show that the phononic crystal bandgap also expands from 6 MHz to 11 MHz while the pillar height increases from 5 um to 7 um. Similar characteristics are also seen in the transmission spectra for the varying core pillar heights of the ring-shaped periodic grooves. In addition, surface acoustic wave attenuation competency depends on the core pillar height. The frequencies where the investigated phononic crystals are functional can be tuned by adjusting the core pillar height.
120F337
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu (TÜBİTAK)
120F337
Prof. Dr. Ahmet Çiçek ve Prof. Dr. Ayşe Erol' a eşsiz katkılarından dolayı teşekkürlerimi sunarım.
Primary Language | English |
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Subjects | Classical Physics (Other) |
Journal Section | Natural Sciences |
Authors | |
Project Number | 120F337 |
Publication Date | June 29, 2022 |
Submission Date | April 16, 2022 |
Acceptance Date | June 16, 2022 |
Published in Issue | Year 2022 |