Broadband acoustic meta-structures fabricated by additive manufacturing
来源期刊：材料导报2020年第11期
论文作者：贾潇 洪明辉 严明
文章页码：11001 - 11002
摘 要：<正>Acoustic meta-structures,because of their flexible and unprecedented proprieties,such as negative dynamic density,negative bulk modulus and refractive index of negative,near-zero or extremely large value,enable new applications to manipulate sound waves’propagation and control energy transfer[1]. Over the past decades,the development of acoustic meta-structures has not only provided advanced functionalities but also tackled the problem of limited device sizes. Heretofore,the meta-structures are explored based on two different kinds of unit cells:locally resonant and
贾潇1,2，洪明辉2，严明1
1. Department of Materials Science and Engineering,Southern University of Science and Technology2. Department of Electrical and Computer Engineering,National University of Singapore
摘 要：<正>Acoustic meta-structures,because of their flexible and unprecedented proprieties,such as negative dynamic density,negative bulk modulus and refractive index of negative,near-zero or extremely large value,enable new applications to manipulate sound waves’propagation and control energy transfer[1]. Over the past decades,the development of acoustic meta-structures has not only provided advanced functionalities but also tackled the problem of limited device sizes. Heretofore,the meta-structures are explored based on two different kinds of unit cells:locally resonant and
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