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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Bibliographic Details
Published in:Sci Rep
Main Authors: Shin, Younghoon, Kwak, Hojeong, Moon, Songky, Lee, Sang-Bum, Yang, Juhee, An, Kyungwon
Format: Artigo
Language:Inglês
Published: Nature Publishing Group 2016
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Online Access: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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