Wave amplification in double negative elastic metamaterials

Y. C. Su, C. T. Sun

研究成果: Conference contribution

摘要

For two homogeneous and isotropic media, the angles of the transmitted and reected waves follow the Snell's law, which relate them to the angle of incidence and material properties of each medium. When the angle of incidence is larger than the critical angle (the angle of incidence that makes the transmission angle equals π=2), the transmitted wave will decay exponentially in the direction away from the interface. However, we found that by changing one medium into a double negative metamaterial, the transmitted wave will grow exponentially instead. This research can be used for amplifying evanescent transmitted waves by putting thin metamaterial layer between bilayer elastic media.

原文English
主出版物標題56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
發行者American Institute of Aeronautics and Astronautics Inc.
ISBN(電子)9781624103421
DOIs
出版狀態Published - 2015
事件56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference 2015 - Kissimmee, United States
持續時間: 2015 一月 52015 一月 9

出版系列

名字56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

Conference

Conference56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference 2015
國家United States
城市Kissimmee
期間15-01-0515-01-09

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Architecture
  • Mechanics of Materials
  • Building and Construction

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