Transmodal elastic metasurface for broad angle total mode conversion
It has been long believed that a total mode conversion between longitudinal and shear elastic waves can only be achieved at a certain incidence angle. Here, we show that a total mode conversion can be achieved for a broad range of incidence angles by a specially designed elastic metasurface, namely,...
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| Veröffentlicht in: | Applied physics letters 2018-06, Vol.112 (24) |
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| container_title | Applied physics letters |
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| creator | Kim, Min Soo Lee, Woo Rim Kim, Yoon Young Oh, Joo Hwan |
| description | It has been long believed that a total mode conversion between longitudinal and shear elastic waves can only be achieved at a certain incidence angle. Here, we show that a total mode conversion can be achieved for a broad range of incidence angles by a specially designed elastic metasurface, namely, transmodal metasurface. From the generalized reflection law, we found that the incident longitudinal wave can be totally converted to a reflected shear wave over a broad range of incidence angles if a sufficiently large phase gradient is introduced at the boundary. Numerical and experimental investigations with a specially engineered transmodal metasurface showed that the total mode conversion can be achieved for wide incidence angles from
19
° to
90
°, which was impossible to be achieved previously. The proposed idea of the transmodal metasurface can open up an advanced avenue for tailoring elastic wave modes as an outstanding alternative to generating shear waves. |
| doi_str_mv | 10.1063/1.5032157 |
| format | Article |
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19
° to
90
°, which was impossible to be achieved previously. The proposed idea of the transmodal metasurface can open up an advanced avenue for tailoring elastic wave modes as an outstanding alternative to generating shear waves.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/1.5032157</identifier><identifier>CODEN: APPLAB</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Angle of reflection ; Applied physics ; Conversion ; Elastic waves ; Incidence angle ; Longitudinal waves ; Metasurfaces ; S waves ; Shear</subject><ispartof>Applied physics letters, 2018-06, Vol.112 (24)</ispartof><rights>Author(s)</rights><rights>2018 Author(s). Published by AIP Publishing.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c327t-6b2d811f667a74601ba278d356a1ebf017e9fd46b1c92f3722d543d1ca507f113</citedby><cites>FETCH-LOGICAL-c327t-6b2d811f667a74601ba278d356a1ebf017e9fd46b1c92f3722d543d1ca507f113</cites><orcidid>0000-0002-7013-7470</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://pubs.aip.org/apl/article-lookup/doi/10.1063/1.5032157$$EHTML$$P50$$Gscitation$$H</linktohtml><link.rule.ids>314,780,784,794,4510,27923,27924,76155</link.rule.ids></links><search><creatorcontrib>Kim, Min Soo</creatorcontrib><creatorcontrib>Lee, Woo Rim</creatorcontrib><creatorcontrib>Kim, Yoon Young</creatorcontrib><creatorcontrib>Oh, Joo Hwan</creatorcontrib><title>Transmodal elastic metasurface for broad angle total mode conversion</title><title>Applied physics letters</title><description>It has been long believed that a total mode conversion between longitudinal and shear elastic waves can only be achieved at a certain incidence angle. Here, we show that a total mode conversion can be achieved for a broad range of incidence angles by a specially designed elastic metasurface, namely, transmodal metasurface. From the generalized reflection law, we found that the incident longitudinal wave can be totally converted to a reflected shear wave over a broad range of incidence angles if a sufficiently large phase gradient is introduced at the boundary. Numerical and experimental investigations with a specially engineered transmodal metasurface showed that the total mode conversion can be achieved for wide incidence angles from
19
° to
90
°, which was impossible to be achieved previously. The proposed idea of the transmodal metasurface can open up an advanced avenue for tailoring elastic wave modes as an outstanding alternative to generating shear waves.</description><subject>Angle of reflection</subject><subject>Applied physics</subject><subject>Conversion</subject><subject>Elastic waves</subject><subject>Incidence angle</subject><subject>Longitudinal waves</subject><subject>Metasurfaces</subject><subject>S waves</subject><subject>Shear</subject><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNqd0E1LAzEQBuAgCtbqwX8Q8KSwNZM0yfYo9RMKXuo5zOZDtmw3NckW_PeutODd0zDw8A7zEnINbAZMiXuYSSY4SH1CJsC0rgRAfUomjDFRqYWEc3KR82ZcJRdiQh7XCfu8jQ476jvMpbV06wvmIQW0noaYaJMiOor9Z-dpiWWUo_fUxn7vU25jf0nOAnbZXx3nlHw8P62Xr9Xq_eVt-bCqrOC6VKrhrgYISmnUc8WgQa5rJ6RC8E1goP0iuLlqwC54EJpzJ-fCgUXJdAAQU3JzyN2l-DX4XMwmDqkfTxrO6lrIGrgc1e1B2RRzTj6YXWq3mL4NMPNbkgFzLGm0dwebbVuwjL_8D-9j-oNm54L4AaqcdD0</recordid><startdate>20180611</startdate><enddate>20180611</enddate><creator>Kim, Min Soo</creator><creator>Lee, Woo Rim</creator><creator>Kim, Yoon Young</creator><creator>Oh, Joo Hwan</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-7013-7470</orcidid></search><sort><creationdate>20180611</creationdate><title>Transmodal elastic metasurface for broad angle total mode conversion</title><author>Kim, Min Soo ; Lee, Woo Rim ; Kim, Yoon Young ; Oh, Joo Hwan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c327t-6b2d811f667a74601ba278d356a1ebf017e9fd46b1c92f3722d543d1ca507f113</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Angle of reflection</topic><topic>Applied physics</topic><topic>Conversion</topic><topic>Elastic waves</topic><topic>Incidence angle</topic><topic>Longitudinal waves</topic><topic>Metasurfaces</topic><topic>S waves</topic><topic>Shear</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kim, Min Soo</creatorcontrib><creatorcontrib>Lee, Woo Rim</creatorcontrib><creatorcontrib>Kim, Yoon Young</creatorcontrib><creatorcontrib>Oh, Joo Hwan</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied physics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kim, Min Soo</au><au>Lee, Woo Rim</au><au>Kim, Yoon Young</au><au>Oh, Joo Hwan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Transmodal elastic metasurface for broad angle total mode conversion</atitle><jtitle>Applied physics letters</jtitle><date>2018-06-11</date><risdate>2018</risdate><volume>112</volume><issue>24</issue><issn>0003-6951</issn><eissn>1077-3118</eissn><coden>APPLAB</coden><abstract>It has been long believed that a total mode conversion between longitudinal and shear elastic waves can only be achieved at a certain incidence angle. Here, we show that a total mode conversion can be achieved for a broad range of incidence angles by a specially designed elastic metasurface, namely, transmodal metasurface. From the generalized reflection law, we found that the incident longitudinal wave can be totally converted to a reflected shear wave over a broad range of incidence angles if a sufficiently large phase gradient is introduced at the boundary. Numerical and experimental investigations with a specially engineered transmodal metasurface showed that the total mode conversion can be achieved for wide incidence angles from
19
° to
90
°, which was impossible to be achieved previously. The proposed idea of the transmodal metasurface can open up an advanced avenue for tailoring elastic wave modes as an outstanding alternative to generating shear waves.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.5032157</doi><tpages>5</tpages><orcidid>https://orcid.org/0000-0002-7013-7470</orcidid></addata></record> |
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| ispartof | Applied physics letters, 2018-06, Vol.112 (24) |
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| language | eng |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Angle of reflection Applied physics Conversion Elastic waves Incidence angle Longitudinal waves Metasurfaces S waves Shear |
| title | Transmodal elastic metasurface for broad angle total mode conversion |
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