Broadband all-optical ultrasound transducers

Yang Hou; Jin Sung Kim; Shai Ashkenazi; Sheng Wen Huang; L. Jay Guo; Matthew O'Donnell

doi:10.1063/1.2771058

Broadband all-optical ultrasound transducers

Yang Hou, Jin Sung Kim, Shai Ashkenazi, Sheng Wen Huang, L. Jay Guo, Matthew O'Donnell

Biomedical Engineering

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

73 Scopus citations

Abstract

A broadband all-optical ultrasound transducer has been designed, fabricated, and tested for high-resolution ultrasound imaging. It consists of a two-dimensional gold nanostructure on a glass substrate, followed by a 3 μm polydimethylsiloxane layer and a 30 nm gold layer. The signal to noise ratio of a pulse-echo signal is over 10 dB in the far field of the transducer, where the center frequency is 40 MHz with -6 dB bandwidth of 57 MHz. The potential for high-frequency ultrasound arrays using this technology is demonstrated using multiple measurements from the transducer to image a 25 μm diameter wire.

Original language	English (US)
Article number	073507
Journal	Applied Physics Letters
Volume	91
Issue number	7
DOIs	https://doi.org/10.1063/1.2771058
State	Published - 2007

Bibliographical note

Funding Information:
This work is supported in part by NIH under Grant Nos. EB003455, EB003449, and EB004933. The author thank the Resource Center for Medical Ultrasonic Transducer Technology at the University of Southern California for supplying the high-frequency piezoelectric transducers.

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abstract = "A broadband all-optical ultrasound transducer has been designed, fabricated, and tested for high-resolution ultrasound imaging. It consists of a two-dimensional gold nanostructure on a glass substrate, followed by a 3 μm polydimethylsiloxane layer and a 30 nm gold layer. The signal to noise ratio of a pulse-echo signal is over 10 dB in the far field of the transducer, where the center frequency is 40 MHz with -6 dB bandwidth of 57 MHz. The potential for high-frequency ultrasound arrays using this technology is demonstrated using multiple measurements from the transducer to image a 25 μm diameter wire.",

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Broadband all-optical ultrasound transducers

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