Optical generation of high frequency ultrasound using two-dimensional gold nanostructure

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

doi:10.1063/1.2344929

Optical generation of high frequency ultrasound using two-dimensional gold nanostructure

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

Biomedical Engineering

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

112 Scopus citations

Abstract

A two-dimensional (2D) gold nanostructure is used to optically generate high frequency ultrasound. The structure consists of 2D arrangements of gold nanoparticles, sandwiched between a transparent substrate and a 4.5 μm thick polydimethylsiloxane (PDMS) layer. The acoustic signal displays significant improvements compared to a bulk black PDMS films (the current state of the art) at frequencies from 50 to 100 MHz. The high optical extinction ratio of the gold nanostructure provides a convenient method to construct an integrated transmit/receive optoacoustic array. These results show that a 2D gold nanostructure can be used to produce high frequency arrays for ultrasound imaging.

Original language	English (US)
Article number	093901
Journal	Applied Physics Letters
Volume	89
Issue number	9
DOIs	https://doi.org/10.1063/1.2344929
State	Published - 2006

Bibliographical note

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

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Optical generation of high frequency ultrasound using two-dimensional gold nanostructure

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