Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Topology‐Optimized Bound States in the Continuum with High‐Q Acoustic Field Enhancement
https://orcid.org/0000-0002-3150-0353
https://orcid.org/0000-0002-1043-3403
https://orcid.org/0000-0002-0176-2686
AbstractAchieving high‐quality (high‐Q) acoustic resonances remains a critical goal in acoustic device design, given their exceptional sound manipulation capabilities. However, enhancing Q‐factors is often hindered by energy dissipation and material losses, except for leveraging bound states in the continuum (BICs). This paper introduces a methodology utilizing topology optimization to achieve high‐Q resonances based on the concept of BICs, which effectively confine acoustic waves by minimizing energy leakage. This method explores entirely new topology classes through the optimization of a single unit cell embedded within periodic arrays. By engineering quasi‐BIC modes and experimentally validating sharp pressure field enhancements, a robust technique that enables precise tuning of resonance frequencies and improves resilience against external perturbations, which is challenging for the conventional parameter‐tuning approach is presented. These findings show promise for advancing wave‐confining applications, such as energy harvesting and acoustic filtering, while pushing the performance boundaries of acoustic devices.
Topology‐Optimized Bound States in the Continuum with High‐Q Acoustic Field Enhancement
https://orcid.org/0000-0002-3150-0353
https://orcid.org/0000-0002-1043-3403
https://orcid.org/0000-0002-0176-2686
AbstractAchieving high‐quality (high‐Q) acoustic resonances remains a critical goal in acoustic device design, given their exceptional sound manipulation capabilities. However, enhancing Q‐factors is often hindered by energy dissipation and material losses, except for leveraging bound states in the continuum (BICs). This paper introduces a methodology utilizing topology optimization to achieve high‐Q resonances based on the concept of BICs, which effectively confine acoustic waves by minimizing energy leakage. This method explores entirely new topology classes through the optimization of a single unit cell embedded within periodic arrays. By engineering quasi‐BIC modes and experimentally validating sharp pressure field enhancements, a robust technique that enables precise tuning of resonance frequencies and improves resilience against external perturbations, which is challenging for the conventional parameter‐tuning approach is presented. These findings show promise for advancing wave‐confining applications, such as energy harvesting and acoustic filtering, while pushing the performance boundaries of acoustic devices.
Topology‐Optimized Bound States in the Continuum with High‐Q Acoustic Field Enhancement
https://orcid.org/0000-0002-3150-0353
https://orcid.org/0000-0002-1043-3403
https://orcid.org/0000-0002-0176-2686
AbstractAchieving high‐quality (high‐Q) acoustic resonances remains a critical goal in acoustic device design, given their exceptional sound manipulation capabilities. However, enhancing Q‐factors is often hindered by energy dissipation and material losses, except for leveraging bound states in the continuum (BICs). This paper introduces a methodology utilizing topology optimization to achieve high‐Q resonances based on the concept of BICs, which effectively confine acoustic waves by minimizing energy leakage. This method explores entirely new topology classes through the optimization of a single unit cell embedded within periodic arrays. By engineering quasi‐BIC modes and experimentally validating sharp pressure field enhancements, a robust technique that enables precise tuning of resonance frequencies and improves resilience against external perturbations, which is challenging for the conventional parameter‐tuning approach is presented. These findings show promise for advancing wave‐confining applications, such as energy harvesting and acoustic filtering, while pushing the performance boundaries of acoustic devices.
Topology‐Optimized Bound States in the Continuum with High‐Q Acoustic Field Enhancement
Advanced Science
Li, Weibai (Autor:in) / Ghabraie, Kazem (Autor:in) / Huang, Xiaodong (Autor:in)
27.03.2025
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Broadband Acoustic Purcell Effect from Collective Bound States in the Continuum
| Wiley | 2025
Self‐Powered Frequency‐Selective Acoustic Sensor Based on Bound States in the Continuum
| Wiley | 2025
Observation of Ultra‐High‐Q Resonators in the Ultrasound via Bound States in the Continuum
| Wiley | 2024
Observation of Ultra‐High‐Q Resonators in the Ultrasound via Bound States in the Continuum
| Wiley | 2024
Topology Optimization of Continuum Structures with Stress Constraints
| British Library Conference Proceedings | 1997