...
首页> 外文期刊>Physical review >Direct observation of the phonon dispersion of a three-dimensional solid/solid hypersonic colloidal crystal
【24h】

Direct observation of the phonon dispersion of a three-dimensional solid/solid hypersonic colloidal crystal

机译:直接观察三维固体/固体高超声速胶体晶体的声子色散

获取原文
获取原文并翻译 | 示例
           

摘要

We report on Brillouin measurements of the phonon dispersion relation of a three-dimensional hypersonic phononic crystal. The phononic crystal, comprised of close-packed polystyrene spheres embedded in a background matrix of solid polydimethylsiloxane, was fabricated using a self-assembly technique. The experimentally measured dispersion relation reveals the band folding effect and the formation of a band gap for longitudinal waves at the boundary of the Brillouin zone. Theoretical calculations, based on the finite element method and the finite-difference time-domain method, are employed to interpret experimentally observed phonon modes and provide insight on important features of the solid/solid hypersonic crystals.
机译:我们报告布里渊测量的三维高超声速声子晶体的声子色散关系。使用自组装技术制造了声子晶体,该声子晶体由嵌入固体聚二甲基硅氧烷的背景基质中的紧密堆积的聚苯乙烯球组成。实验测量的色散关系揭示了在布里渊区边界处的纵波带折叠效应和带隙的形成。基于有限元方法和时域有限差分法的理论计算可用于解释实验观察到的声子模式,并提供对固体/固体高超声速晶体重要特征的见解。

著录项

  • 来源
    《Physical review》 |2013年第14期|144307.1-144307.5|共5页
  • 作者单位

    Materials Research Department, Toyota Research Institute of North America, Ann Arbor, Michigan 48105, USA;

    Department of Materials Science and Engineering, University of Arizona, Tucson, Arizona 85721, USA;

    Materials Research Department, Toyota Research Institute of North America, Ann Arbor, Michigan 48105, USA;

    Department of Geology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA;

    Department of Geology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA;

    Department of Geology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA;

    Department of Materials Science and Engineering, University of Arizona, Tucson, Arizona 85721, USA;

    Materials Research Department, Toyota Research Institute of North America, Ann Arbor, Michigan 48105, USA;

    Materials Research Department, Toyota Research Institute of North America, Ann Arbor, Michigan 48105, USA,Inorganic Materials Laboratory, Toyota Central R&D Labs. Inc, Nagakute, Aichi 480-1192, Japan;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    mechanical and elastic waves; vibrations; brillouin and rayleigh scattering; other light scattering;

    机译:机械和弹性波;振动布里洛因和瑞利散射;其他光散射;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号