Acoustic beam control in biomimetic projector via velocity gradient

Xiaowei Gao; Yu Zhang; Wenwu Cao; Erqian Dong; Zhongchang Song; Songhai Li; Liguo Tang; Sai Zhang

doi:10.1063/1.4955179

Acoustic beam control in biomimetic projector via velocity gradient

Xiaowei Gao, Yu Zhang, Wenwu Cao, Erqian Dong, Zhongchang Song, Songhai Li, Liguo Tang, Sai Zhang

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

A biomimetic projector (BioP) based on computerized tomography of pygmy sperm whale's biosonar system has been designed using gradient-index (GRIN) material. The directivity of this BioP device was investigated as function of frequency and the velocity gradient of the GRIN material. A strong beam control over a broad bandwidth at the subwavelength scale has been achieved. Compared with a bare subwavelength source, the main lobe pressure of the BioP is about five times as high and the angular resolution is one order of magnitude better. Our results indicate that this BioP has excellent application potential in miniaturized underwater sonars.

Original language	English (US)
Article number	013505
Journal	Applied Physics Letters
Volume	109
Issue number	1
DOIs	https://doi.org/10.1063/1.4955179
State	Published - Jul 4 2016

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.4955179

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title = "Acoustic beam control in biomimetic projector via velocity gradient",

abstract = "A biomimetic projector (BioP) based on computerized tomography of pygmy sperm whale's biosonar system has been designed using gradient-index (GRIN) material. The directivity of this BioP device was investigated as function of frequency and the velocity gradient of the GRIN material. A strong beam control over a broad bandwidth at the subwavelength scale has been achieved. Compared with a bare subwavelength source, the main lobe pressure of the BioP is about five times as high and the angular resolution is one order of magnitude better. Our results indicate that this BioP has excellent application potential in miniaturized underwater sonars.",

author = "Xiaowei Gao and Yu Zhang and Wenwu Cao and Erqian Dong and Zhongchang Song and Songhai Li and Liguo Tang and Sai Zhang",

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T1 - Acoustic beam control in biomimetic projector via velocity gradient

AU - Gao, Xiaowei

AU - Zhang, Yu

AU - Cao, Wenwu

AU - Dong, Erqian

AU - Song, Zhongchang

AU - Li, Songhai

AU - Tang, Liguo

AU - Zhang, Sai

PY - 2016/7/4

Y1 - 2016/7/4

N2 - A biomimetic projector (BioP) based on computerized tomography of pygmy sperm whale's biosonar system has been designed using gradient-index (GRIN) material. The directivity of this BioP device was investigated as function of frequency and the velocity gradient of the GRIN material. A strong beam control over a broad bandwidth at the subwavelength scale has been achieved. Compared with a bare subwavelength source, the main lobe pressure of the BioP is about five times as high and the angular resolution is one order of magnitude better. Our results indicate that this BioP has excellent application potential in miniaturized underwater sonars.

AB - A biomimetic projector (BioP) based on computerized tomography of pygmy sperm whale's biosonar system has been designed using gradient-index (GRIN) material. The directivity of this BioP device was investigated as function of frequency and the velocity gradient of the GRIN material. A strong beam control over a broad bandwidth at the subwavelength scale has been achieved. Compared with a bare subwavelength source, the main lobe pressure of the BioP is about five times as high and the angular resolution is one order of magnitude better. Our results indicate that this BioP has excellent application potential in miniaturized underwater sonars.

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Acoustic beam control in biomimetic projector via velocity gradient

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