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Observation of an exceptional point in a two-dimensional ultrasonic cavity of concentric circular shells

We report observation of an exceptional point in circular shell ultrasonic cavities in both theory and experiment. In our theoretical analysis we first observe two interacting mode groups, fluid- and solid-based modes, in the acoustic cavities and then show the existence of an EP of these mode group...

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Publicat a:Sci Rep
Autors principals: Shin, Younghoon, Kwak, Hojeong, Moon, Songky, Lee, Sang-Bum, Yang, Juhee, An, Kyungwon
Format: Artigo
Idioma:Inglês
Publicat: Nature Publishing Group 2016
Matèries:
Accés en línia:https://ncbi.nlm.nih.gov/pmc/articles/PMC5153842/
https://ncbi.nlm.nih.gov/pubmed/27958315
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1038/srep38826
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