We report the observation of acoustic topological Fano resonance, and demonstrate their robustness to im- perfections. By going beyond the performance degradations caused by inadvertent flaws occurring during fabrication process, such topologically protected Fano resonances pave the way for a new generation of re- liable wave-based devices such as ultrafast switches or modulators , efficient lasers, perfect absorbers, and highly precise interferometers.
Tobias Kippenberg, Junqiu Liu, Maxim Karpov, Anton Lukashchuk
Tobias Kippenberg, Rui Ning Wang, Junqiu Liu, Jijun He, Tianyi Liu, Chao Xiang
Roland Logé, Jamasp Jhabvala, Antonia Neels, Annapaola Parrilli, Navid Sohrabi