<?xml version="1.0" encoding="utf-8"?>
<export-example>
  <doc>
    <id>3172</id>
    <completedYear/>
    <publishedYear>2018</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue>22</issue>
    <volume>113</volume>
    <type>article</type>
    <publisherName>AIP Publishing</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Measuring monopole and dipole polarizability of acoustic meta-atoms</title>
    <abstract language="eng">We present a method to extract monopole and dipole polarizability from experimental measurements of two-dimensional acoustic meta-atoms. In contrast to extraction from numerical results, this enables all second-order effects and uncertainties in material properties to be accounted for. We apply the technique to 3D-printed labyrinthine meta-atoms of a variety of geometries. We show that the polarizability of structures with a shorter acoustic path length agrees well with numerical results. However, those with longer path lengths suffer strong additional damping, which we attribute to the strong viscous and thermal losses in narrow channels.</abstract>
    <parentTitle language="eng">Applied physics letters</parentTitle>
    <identifier type="doi">10.1063/1.5052661</identifier>
    <enrichment key="opus.import.date">2022-03-17T06:53:51+00:00</enrichment>
    <enrichment key="opus.source">sword</enrichment>
    <enrichment key="opus.import.user">importuser</enrichment>
    <enrichment key="BegutachtungStatus">peer-reviewed</enrichment>
    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Joshua Jordaan</author>
    <author>Stefan Punzet</author>
    <author>Anton Melnikov</author>
    <author>Alexandre Sanches</author>
    <author>Sebastian Oberst</author>
    <author>Steffen Marburg</author>
    <author>David A. Powell</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>METASURFACE</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>SOUND</value>
    </subject>
    <collection role="institutes" number="FakEI">Fakultät Elektro- und Informationstechnik</collection>
    <collection role="othforschungsschwerpunkt" number="16316">Produktion und Systeme</collection>
  </doc>
</export-example>
