1 Ocak 2015 Dergi makalesi Açık Erişim

Cicek, Ahmet; Gungor, Tayyar; Kaya, Olgun Adem; Ulug, Bulent

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/78657</identifier>
  <creators>
    <creator>
      <creatorName>Cicek, Ahmet</creatorName>
      <givenName>Ahmet</givenName>
      <familyName>Cicek</familyName>
      <affiliation>Mehmet Akif Ersoy Univ, Fac Arts &amp; Sci, Dept Phys, TR-15030 Burdur, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Gungor, Tayyar</creatorName>
      <givenName>Tayyar</givenName>
      <familyName>Gungor</familyName>
      <affiliation>Mehmet Akif Ersoy Univ, Fac Engn &amp; Architecture, Dept Energy Syst Engn, TR-15030 Burdur, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Kaya, Olgun Adem</creatorName>
      <givenName>Olgun Adem</givenName>
      <familyName>Kaya</familyName>
      <affiliation>Inonu Univ, Fac Educ, Dept Comp Educ &amp; Educ Technol, TR-44280 Malatya, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Ulug, Bulent</creatorName>
      <givenName>Bulent</givenName>
      <familyName>Ulug</familyName>
      <affiliation>Akdeniz Univ, Fac Sci, Dept Phys, TR-07058 Antalya, Turkey</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Guiding Airborne Sound Through Surface Modes Of A Two-Dimensional Phononic Crystal</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2015</publicationYear>
  <dates>
    <date dateType="Issued">2015-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/78657</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1088/0022-3727/48/23/235303</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">Existence and guiding properties of surface modes bound to the interface between a finite two-dimensional phononic crystal and the host medium are experimentally and numerically demonstrated. Surface modes can be observed on both (1 0) and (1 1) surfaces of a square phononic crystal of steel cylinders in air. Numerical investigations of band properties and simulations of mode excitation are carried out through the finite-element method. Excited by the far field of a speaker, existence of surface modes is investigated by recording the sound field in the vicinity of the respective crystal surfaces. Both surface bands of the square phononic crystal depart from bulk bands and extend into the band gap for sufficiently high filling fractions. While such a surface band can be obtained for considerably smaller scatterer radii for the (1 0) surface, significantly higher radii around 0.49 of the lattice constant are required to obtain propagating surface modes on the (1 1) surface. Persistence of the guided surface mode along the (1 0) surface, where it diminishes in a length scale of the lattice constant in the transverse direction is demonstrated. The modes of the (1 1) surface decay faster into the air in the transverse direction. Guided modes on both surfaces propagate in a beating manner where the beat length can be determined by the wave number of the mode.</description>
  </descriptions>
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