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This research is supported by the DYNAMO project (101046489) , funded by the European Union, but the views and opinions expressed are, however, those of the authors only and do not necessarily reflect those of the European Union or the European Innovation Council. Neither the European Union nor the granting authority can be held responsible for them. This publication is part of Project No. PID2021-124814NB-C22, funded by MCIN/AEI/10.13039/501100011033, " FEDER, A way of making Europe. "

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Gao, NanAuthor
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Article

Bound states in the continuum for antisymmetric lamb modes in composite plates made of isotropic materials

Publicated to:Wave Motion. 129 103348- - 2024-05-25 129(), DOI: 10.1016/j.wavemoti.2024.103348

Authors: Gao, Nan; Abraham-Ekeroth, Ricardo Martin; Torrent, Daniel

Affiliations

Ctr Invest Fis Ingn Ctr Prov Buenos Aires UNCPBA C, Campus Univ, RA-7000 Tandil, Argentina - Author
Inst Fis Arroyo Seco, Pinto 399, RA-7000 Tandil, Argentina - Author
Univ Jaume 1, Inst Noves Tecnol Imatge INIT, Grp Recerca Opt Castello GROC, Castellon de La Plana 12071, Spain - Author

Abstract

In this study, we report a numerical design and observation of bound states in the continuum (BICs) for Lamb waves. BICs for elastic-wave systems, especially in non-periodic configurations, are difficult to obtain due to their intricate polarization states. However, the study in this matter has become very important, especially in the field of opto-mechanics or other multi -field couplings at micro or nanoscales. To illustrate the design concept, we simulate the introduction of a piece of silica (SiO 2 ) into a thin infinite Si plate and show that, for specific aspect ratios, BICs for elastic waves can be predicted. We present numerical results for both two-dimensional (2D) rectangular plates and three-dimensional (3D) disk structures. Moreover, we also investigate the modal contributions of both the background and inclusion media during the occurrence of BICs, further verifying the physical background of our design strategy. Although we have focused our work on asymmetric Lamb modes, the current method can also be applied to construct other types of elastic-wave BICs, providing a powerful tool for metamaterial device prototyping based on the control or guiding of elastic waves.

Keywords
Asymmetric elastic structuresBound states in the continuumElastic-wave bicsLamb wavesLighMetamaterial device prototypinOpto-mechanicsTrapped modes

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Wave Motion due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2024 there are still no calculated indicators, but in 2023, it was in position 87/170, thus managing to position itself as a Q2 (Segundo Cuartil), in the category Mechanics. Notably, the journal is positioned en el Cuartil Q2 para la agencia Scopus (SJR) en la categoría Physics and Astronomy (Miscellaneous).

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-05-06:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 4 (PlumX).
Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Argentina.

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Gao, Nan) .