# Topological Supercavity Resonances in the Finite System

@article{Huang2022TopologicalSR, title={Topological Supercavity Resonances in the Finite System}, author={Lujun Huang and Bin Jia and Yan Kei Chiang and Sibo Huang and Cheng-yu Shen and Fu Deng and Tianzhi Yang and David A. Powell and Yong Li and Andrey E. Miroshnichenko}, journal={Advanced Science}, year={2022}, volume={9} }

Acoustic resonant cavities play a vital role in modern acoustical systems. The ultrahigh quality‐factor resonances are highly desired for some applications such as high‐resolution acoustic sensors and acoustic lasers. Here, a class of supercavity resonances is theoretically proposed and experimentally demonstrated in a coupled acoustic resonator system, arising from the merged bound states in the continuum (BICs) in geometry space. Their topological origin is demonstrated by explicitly…

## 8 Citations

### General Framework of Bound States in the Continuum in an Open Acoustic Resonator

- PhysicsPhysical Review Applied
- 2022

Bound states in the continuum (BICs) provide a viable way of achieving high-Q resonances in both photonics and acoustics. In this work, we proposed a general method of constructing Friedrich-Wintgen…

### Acoustic embedded eigenstates in metasurface-based structures

- PhysicsApplied Physics Letters
- 2022

Energy confinement plays an important role in improving wave–matter interactions, enabling applications such as sensing, lasing, and filtering. One convenient solution for achieving large…

### Doubly resonant photonic crystal cavity using merged bound states in the continuum

- Physics
- 2022

: In this work, a doubly resonant photonic crystal (PhC) cavity using the merged bound states in the continuum (BICs) is proposed to obtain a higher second harmonic generation (SHG) eﬃciency. Firstly…

### Plasmonic Bound States in the Continuum in Compact Nanostructures

- PhysicsAdvanced Optical Materials
- 2022

Optical bound states in the continuum (BICs) have become a unique way to produce the extreme localization and enhancement of light waves, however, it remains challenging to realize them in…

### Desktop laboratory of bound states in the continuum in metallic waveguide with dielectric cavities

- PhysicsPhysical Review B
- 2022

We consider dielectric cavities whose radiation space is restricted by two parallel metallic planes. The TM solutions of the Maxwell equations of the system are equivalent to the solutions of…

### Theory of linewidth narrowing in Fano lasers

- PhysicsPhysical Review Research
- 2022

We present a general theory for the coherence of Fano lasers based on a bound state in the continuum. We ﬁnd that such lasers enable orders of magnitude reduction of the quantum-limited linewidth,…

### Fabry-Perot bound states in the continuum in an anisotropic photonic crystal

- PhysicsPhysical Review B
- 2022

An anisotropic photonic crystal containing two anisotropic defect layers is considered. It is demon-strated that the system under can support a Fabry–Perot bound state in the continuum (FP-BIC). A…

### Resonant leaky modes in all-dielectric metasystems: Fundamentals and applications

- PhysicsPhysics Reports
- 2023

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