Semantic Scholar Open Access 2023 34 sitasi

Realistic prediction and engineering of high-Q modes to implement stable Fano resonances in acoustic devices

F. Kronowetter M. Maeder Chiang Kei Yan Lujun Huang J. Schmid +3 lainnya

Lihat Sumber DOI

Abstrak

Quasi-bound states in the continuum (QBICs) coupling into the propagating spectrum manifest themselves as high-quality factor (Q) modes susceptible to perturbations. This poses a challenge in predicting stable Fano resonances for realistic applications. Besides, where and when the maximum field enhancement occurs in real acoustic devices remains elusive. In this work, we theoretically predict and experimentally demonstrate the existence of a Friedrich-Wintgen BIC in an open acoustic cavity. We provide direct evidence for a QBIC by mapping the pressure field inside the cavity using a Laser Doppler Vibrometer (LDV), which provides the missing field enhancement data. Furthermore, we design a symmetry-reduced BIC and achieve field enhancement by a factor of about three compared to the original cavity. LDV measurements are a promising technique for obtaining high-Q modes’ missing field enhancement data. The presented results facilitate the future applications of BICs in acoustics as high-intensity sound sources, filters, and sensors.

Topik & Kata Kunci

Medicine

Penulis (8)

F. Kronowetter

M. Maeder

Chiang Kei Yan

Lujun Huang

J. Schmid

S. Oberst

David A. Powell

S. Marburg

Format Sitasi

APA MLA BibTeX

Kronowetter, F., Maeder, M., Yan, C.K., Huang, L., Schmid, J., Oberst, S. et al. (2023). Realistic prediction and engineering of high-Q modes to implement stable Fano resonances in acoustic devices. https://doi.org/10.1038/s41467-023-42621-8

Akses Cepat

Lihat di Sumber doi.org/10.1038/s41467-023-42621-8

Informasi Jurnal

Tahun Terbit: 2023
Bahasa: en
Total Sitasi: 34×
Sumber Database: Semantic Scholar
DOI: 10.1038/s41467-023-42621-8
Akses: Open Access ✓