Academic Journal
Observation of Ultra‐High‐Q Resonators in the Ultrasound via Bound States in the Continuum
| العنوان: | Observation of Ultra‐High‐Q Resonators in the Ultrasound via Bound States in the Continuum |
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| المؤلفون: | Mohamed Farhat, Younes Achaoui, Julio Andrés Iglesias Martínez, Mahmoud Addouche, Ying Wu, Abdelkrim Khelif |
| المصدر: | Advanced Science, Vol 11, Iss 33, Pp n/a-n/a (2024) |
| بيانات النشر: | Wiley |
| سنة النشر: | 2024 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | bound states in the continuum, Fabry–Perot resonators, high quality factors, metasurfaces, ultrasound, underwater acoustics, Science |
| الوصف: | The confinement of waves in open systems represents a fundamental phenomenon extensively explored across various branches of wave physics. Recently, significant attention is directed toward bound states in the continuum (BIC), a class of modes that are trapped but do not decay in an otherwise unbounded continuum. Here, the theoretical investigation and experimental demonstration of the existence of quasi‐bound states in the continuum (QBIC) for ultrasonic waves are achieved by leveraging an elastic Fabry–Pérot metasurface resonator. Several intriguing properties of the ultrasound quasi‐bound states in the continuum that are robust to parameter scanning are unveiled, and experimental evidence of a remarkable Q‐factor of 350 at ≈1 MHz frequency, far exceeding the state‐of‐the‐art using a fully acoustic underwater system is presented. The findings contribute novel insights into the understanding of BIC for acoustic waves, offering a new paradigm for the design of efficient, ultra‐high Q‐factor ultrasound devices. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | https://doi.org/10.1002/advs.202402917; https://doaj.org/toc/2198-3844; https://doaj.org/article/f24fe5448d9141208f1ee46db611930d |
| DOI: | 10.1002/advs.202402917 |
| الاتاحة: | https://doi.org/10.1002/advs.202402917 https://doaj.org/article/f24fe5448d9141208f1ee46db611930d |
| رقم الانضمام: | edsbas.AFEF1502 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1002/advs.202402917 |
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