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题名: A biomimetic projector with high subwavelength directivity based on dolphin biosonar
作者: Zhang, Yu1, 2; Gao, Xiaowei1; Zhang, Sai1; Cao, Wenwu3, 4; Tang, Liguo1; Wang, Ding5; Li, Yan2
关键词: ECHOLOCATION
刊名: APPLIED PHYSICS LETTERS
发表日期: 2014-09-22
DOI: 10.1063/1.4896509
卷: 105, 期:12
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Physics, Applied
研究领域[WOS]: Physics
英文摘要: Based on computed tomography of a Yangtze finless porpoise's biosonar system, a biomimetic structure was designed to include air cavity, gradient-index material, and steel outer-structure mimicking air sacs, melon, and skull, respectively. The mainlobe pressure was about three times higher, the angular resolution was one order of magnitude higher, and the effective source size was orders of magnitude larger than those of the subwavelength source without the biomimetic structure. The superior subwavelength directivity over a broad bandwidth suggests potential applications of this biomimetic projector in underwater sonar, medical ultrasonography, and other related applications. (C) 2014 AIP Publishing LLC.
关键词[WOS]: ECHOLOCATION
语种: 英语
WOS记录号: WOS:000343004400085
ISSN号: 0003-6951
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/20281
Appears in Collections:水生生物多样性与资源保护研究中心_期刊论文

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作者单位: 1.Xiamen Univ, Minist Educ, Key Lab Underwater Acoust Commun & Marine Informa, Xiamen 301005, Peoples R China
2.Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361005, Peoples R China
3.Penn State Univ, Dept Math, University Pk, PA 16802 USA
4.Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA
5.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China

Recommended Citation:
Zhang, Yu; Gao, Xiaowei; Zhang, Sai; Cao, Wenwu; Tang, Liguo; Wang, Ding; Li, Yan.A biomimetic projector with high subwavelength directivity based on dolphin biosonar,APPLIED PHYSICS LETTERS,2014,():
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