Elastic Waves Scattering without Conversion in Metamaterials with Simultaneous Zero Indices for Longitudinal and Transverse Waves
We theoretically investigate elastic waves propagating in metamaterials with simultaneous zero indices for both the longitudinal and transverse waves. With scattering objects (here cylinders) present in the metamaterial slabs, while the elastic waves can mostly transmit through the metamaterial slab...
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| Veröffentlicht in: | Physical review letters 2015-10, Vol.115 (17), p.175502-175502, Article 175502 |
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| container_title | Physical review letters |
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| creator | Liu, Fengming Liu, Zhengyou |
| description | We theoretically investigate elastic waves propagating in metamaterials with simultaneous zero indices for both the longitudinal and transverse waves. With scattering objects (here cylinders) present in the metamaterial slabs, while the elastic waves can mostly transmit through the metamaterial slabs perfectly, exhibiting the well-known cloaking effect of zero-index metamaterials, they nevertheless become totally blocked at resonances, indicating strong elastic wave scattering by the objects in the cases. However, despite the occurrence of the elastic wave scattering, there is, counterintuitively, no mode conversion between the longitudinal and transverse waves in the process, completely in contrast to that in conventional elastic media. A design of a two-dimensional phononic crystal with these peculiar properties is presented. |
| doi_str_mv | 10.1103/PhysRevLett.115.175502 |
| format | Article |
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With scattering objects (here cylinders) present in the metamaterial slabs, while the elastic waves can mostly transmit through the metamaterial slabs perfectly, exhibiting the well-known cloaking effect of zero-index metamaterials, they nevertheless become totally blocked at resonances, indicating strong elastic wave scattering by the objects in the cases. However, despite the occurrence of the elastic wave scattering, there is, counterintuitively, no mode conversion between the longitudinal and transverse waves in the process, completely in contrast to that in conventional elastic media. A design of a two-dimensional phononic crystal with these peculiar properties is presented.</description><identifier>ISSN: 0031-9007</identifier><identifier>EISSN: 1079-7114</identifier><identifier>DOI: 10.1103/PhysRevLett.115.175502</identifier><identifier>PMID: 26551124</identifier><language>eng</language><publisher>United States</publisher><subject>Conversion ; Crystals ; Elastic scattering ; Elastic waves ; Metamaterials ; Slabs ; Transverse waves ; Wave propagation</subject><ispartof>Physical review letters, 2015-10, Vol.115 (17), p.175502-175502, Article 175502</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c445t-4ec0208ad126bec44effdc4ea46d7745120a84c1ed41ed0949e681085b52a7cf3</citedby><cites>FETCH-LOGICAL-c445t-4ec0208ad126bec44effdc4ea46d7745120a84c1ed41ed0949e681085b52a7cf3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,2863,2864,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26551124$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Liu, Fengming</creatorcontrib><creatorcontrib>Liu, Zhengyou</creatorcontrib><title>Elastic Waves Scattering without Conversion in Metamaterials with Simultaneous Zero Indices for Longitudinal and Transverse Waves</title><title>Physical review letters</title><addtitle>Phys Rev Lett</addtitle><description>We theoretically investigate elastic waves propagating in metamaterials with simultaneous zero indices for both the longitudinal and transverse waves. With scattering objects (here cylinders) present in the metamaterial slabs, while the elastic waves can mostly transmit through the metamaterial slabs perfectly, exhibiting the well-known cloaking effect of zero-index metamaterials, they nevertheless become totally blocked at resonances, indicating strong elastic wave scattering by the objects in the cases. However, despite the occurrence of the elastic wave scattering, there is, counterintuitively, no mode conversion between the longitudinal and transverse waves in the process, completely in contrast to that in conventional elastic media. A design of a two-dimensional phononic crystal with these peculiar properties is presented.</description><subject>Conversion</subject><subject>Crystals</subject><subject>Elastic scattering</subject><subject>Elastic waves</subject><subject>Metamaterials</subject><subject>Slabs</subject><subject>Transverse waves</subject><subject>Wave propagation</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNqFkU1P3DAQhi1UxG6Bv4B87CV07Nj5OFYrWlbaCsSHkLhEXmcCrhJ7aztb7ZF_Xi-hFTcOo5FePfPOjF5CzhicMwb51-vnXbjB7QpjTII8Z6WUwA_InEFZZyVj4hOZA-QsqwHKGfkcwi8AYLyojsiMF1IyxsWcvFz0KkSj6YPaYqC3WsWI3tgn-sfEZzdGunB2iz4YZ6mx9CdGNag9ovrwytBbM4x9VBbdGOgjekeXtjU6uXXO05WzTyaOrbGqp8q29M4rG_aOOO08IYdd8sLTt35M7r9f3C0us9XVj-Xi2yrTQsiYCdTAoVJtemGNScOua7VAJYq2LIVkHFQlNMNWpIJa1FhUDCq5llyVusuPyZfJd-Pd7xFDbAYTNPb9dHnDKki8BCk-Rsucy7qQvE5oMaHauxA8ds3Gm0H5XcOg2SfVvEsqCbKZkkqDZ287xvWA7f-xf9HkfwHzzJTy</recordid><startdate>20151023</startdate><enddate>20151023</enddate><creator>Liu, Fengming</creator><creator>Liu, Zhengyou</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20151023</creationdate><title>Elastic Waves Scattering without Conversion in Metamaterials with Simultaneous Zero Indices for Longitudinal and Transverse Waves</title><author>Liu, Fengming ; Liu, Zhengyou</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c445t-4ec0208ad126bec44effdc4ea46d7745120a84c1ed41ed0949e681085b52a7cf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Conversion</topic><topic>Crystals</topic><topic>Elastic scattering</topic><topic>Elastic waves</topic><topic>Metamaterials</topic><topic>Slabs</topic><topic>Transverse waves</topic><topic>Wave propagation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liu, Fengming</creatorcontrib><creatorcontrib>Liu, Zhengyou</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liu, Fengming</au><au>Liu, Zhengyou</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Elastic Waves Scattering without Conversion in Metamaterials with Simultaneous Zero Indices for Longitudinal and Transverse Waves</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>2015-10-23</date><risdate>2015</risdate><volume>115</volume><issue>17</issue><spage>175502</spage><epage>175502</epage><pages>175502-175502</pages><artnum>175502</artnum><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>We theoretically investigate elastic waves propagating in metamaterials with simultaneous zero indices for both the longitudinal and transverse waves. 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| ispartof | Physical review letters, 2015-10, Vol.115 (17), p.175502-175502, Article 175502 |
| issn | 0031-9007 1079-7114 |
| language | eng |
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| source | American Physical Society Journals |
| subjects | Conversion Crystals Elastic scattering Elastic waves Metamaterials Slabs Transverse waves Wave propagation |
| title | Elastic Waves Scattering without Conversion in Metamaterials with Simultaneous Zero Indices for Longitudinal and Transverse Waves |
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