{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,24]],"date-time":"2026-03-24T15:10:05Z","timestamp":1774365005652,"version":"3.50.1"},"reference-count":47,"publisher":"American Association for the Advancement of Science (AAAS)","issue":"10","funder":[{"DOI":"10.13039\/100016771","name":"Center for Advanced Meta-Materials","doi-asserted-by":"publisher","award":["CAMM-2014M3A6B3063712"],"award-info":[{"award-number":["CAMM-2014M3A6B3063712"]}],"id":[{"id":"10.13039\/100016771","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001665","name":"Agence Nationale de la Recherche","doi-asserted-by":"publisher","award":["ANR-21-CE08-0002"],"award-info":[{"award-number":["ANR-21-CE08-0002"]}],"id":[{"id":"10.13039\/501100001665","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001700","name":"Ministry of Education, Culture, Sports, Science, and Technology","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001700","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003725","name":"National Research Foundation of Korea","doi-asserted-by":"publisher","award":["2015001948"],"award-info":[{"award-number":["2015001948"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["www.science.org"],"crossmark-restriction":true},"short-container-title":["Sci. Adv."],"published-print":{"date-parts":[[2026,3,6]]},"abstract":"<jats:p>\n                    Acoustic metamaterials offer powerful solutions for manipulating sound at subwavelength scales. One important application is super-resolved acoustic imaging, which relies on access to evanescent waves beyond the diffraction limit. Near-field techniques using subwavelength probes can capture these waves, revealing fine object details. Here, we introduce an experimental platform that harnesses airborne extraordinary transmission to couple evanescent acoustic waves into a subwavelength, zero-mass sonic meta-atom probe. By mounting a circular membrane at the tip of an air-filled waveguide with a conical tip, we exploit a modification of the acoustic inertance\u2014caused by an object\u2019s proximity\u2014via the sonic Drexhage effect, leading to a downshift of the resonant frequency in the kilohertz range. Experimental results, supported by numerical and theoretical models, demonstrate that extreme subwavelength imaging is enabled by measuring the waveguide\u2019s acoustic reflection coefficient, with lateral and depth resolutions of approximately\n                    <jats:inline-formula>\n                      <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\" overflow=\"scroll\">\n                        <mml:mrow>\n                          <mml:mi mathvariant=\"normal\">\u03bb<\/mml:mi>\n                          <mml:mo>\/<\/mml:mo>\n                          <mml:mn>20<\/mml:mn>\n                        <\/mml:mrow>\n                      <\/mml:math>\n                    <\/jats:inline-formula>\n                    and\n                    <jats:inline-formula>\n                      <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\" overflow=\"scroll\">\n                        <mml:mrow>\n                          <mml:mi mathvariant=\"normal\">\u03bb<\/mml:mi>\n                          <mml:mo>\/<\/mml:mo>\n                          <mml:mn>650<\/mml:mn>\n                        <\/mml:mrow>\n                      <\/mml:math>\n                    <\/jats:inline-formula>\n                    , respectively (where \u03bb is the acoustic wavelength). The platform\u2019s capabilities for texture measurement and noncontact scanning are also demonstrated.\n                  <\/jats:p>","DOI":"10.1126\/sciadv.adz9172","type":"journal-article","created":{"date-parts":[[2026,3,4]],"date-time":"2026-03-04T18:58:52Z","timestamp":1772650732000},"update-policy":"https:\/\/doi.org\/10.34133\/aaas_crossmark","source":"Crossref","is-referenced-by-count":0,"title":["Subwavelength imaging with a zero-mass sonic meta-atom"],"prefix":"10.1126","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1524-0643","authenticated-orcid":true,"given":"Thibaut","family":"Devaux","sequence":"first","affiliation":[{"name":"Division of Applied Physics, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan."},{"name":"GREMAN UMR 7347, Universit\u00e9 de Tours, INSA CVL, CNRS, 41000 Blois, France."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2069-261X","authenticated-orcid":true,"given":"Eun","family":"Bok","sequence":"additional","affiliation":[{"name":"Department of Physics and Engineering Physics, Yonsei University, Wonju 26493, Republic of Korea."},{"name":"Institute of Advanced Machines and Design, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jong J.","family":"Park","sequence":"additional","affiliation":[{"name":"JJNS Co. Ltd., Daejeon 34002, Korea."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sam H.","family":"Lee","sequence":"additional","affiliation":[{"name":"Institute of Physics and Applied Physics, Yonsei University, Seoul 03722, Republic of Korea."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2688-0926","authenticated-orcid":true,"given":"Motonobu","family":"Tomoda","sequence":"additional","affiliation":[{"name":"Faculty of Science and Technology, Oita University, Oita City, Oita 870-1192, Japan."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0736-1242","authenticated-orcid":true,"given":"Osamu","family":"Matsuda","sequence":"additional","affiliation":[{"name":"Division of Applied Physics, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3035-0901","authenticated-orcid":true,"given":"Oliver B.","family":"Wright","sequence":"additional","affiliation":[{"name":"Hokkaido University, Sapporo 060-8628, Japan."},{"name":"Graduate School of Engineering, The University of Osaka, Yamadaoka 2-1, Suita, Osaka 565-0871, Japan."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"221","reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevLett.85.3966"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevB.73.033108"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1063\/1.2424557"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1038\/nmat2561"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1063\/1.3153976"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.1038\/nmat2141"},{"key":"e_1_3_2_8_2","doi-asserted-by":"publisher","DOI":"10.1063\/1.3291677"},{"key":"e_1_3_2_9_2","doi-asserted-by":"publisher","DOI":"10.1063\/1.3507893"},{"key":"e_1_3_2_10_2","doi-asserted-by":"publisher","DOI":"10.1038\/nphys1804"},{"key":"e_1_3_2_11_2","doi-asserted-by":"publisher","DOI":"10.1063\/1.3607277"},{"key":"e_1_3_2_12_2","doi-asserted-by":"publisher","DOI":"10.1126\/science.1230054"},{"key":"e_1_3_2_13_2","doi-asserted-by":"publisher","DOI":"10.1063\/1.4820150"},{"key":"e_1_3_2_14_2","doi-asserted-by":"publisher","DOI":"10.1063\/1.4837875"},{"key":"e_1_3_2_15_2","doi-asserted-by":"publisher","DOI":"10.1063\/1.4907634"},{"key":"e_1_3_2_16_2","doi-asserted-by":"publisher","DOI":"10.1038\/nature05350"},{"key":"e_1_3_2_17_2","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevLett.99.043902"},{"key":"e_1_3_2_18_2","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevLett.99.174301"},{"key":"e_1_3_2_19_2","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevLett.104.164301"},{"key":"e_1_3_2_20_2","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevLett.111.055501"},{"key":"e_1_3_2_21_2","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevLett.110.244302"},{"key":"e_1_3_2_22_2","doi-asserted-by":"publisher","DOI":"10.1063\/1.4896276"},{"key":"e_1_3_2_23_2","doi-asserted-by":"publisher","DOI":"10.1038\/srep33380"},{"key":"e_1_3_2_24_2","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevB.108.144111"},{"key":"e_1_3_2_25_2","doi-asserted-by":"publisher","DOI":"10.1126\/sciadv.aay8507"},{"key":"e_1_3_2_26_2","doi-asserted-by":"publisher","DOI":"10.1063\/1.96149"},{"key":"e_1_3_2_27_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0041-624X(97)00083-8"},{"key":"e_1_3_2_28_2","doi-asserted-by":"publisher","DOI":"10.1038\/ncomms9037"},{"key":"e_1_3_2_29_2","unstructured":"D. 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