Carbon nanotube composite optoacoustic transmitters for strong and high frequency ultrasound generation

Hyoung Won Baac; Jong G. Ok; Hui Joon Park; Tao Ling; Sung Liang Chen; A. John Hart; L. Jay Guo

doi:10.1063/1.3522833

Carbon nanotube composite optoacoustic transmitters for strong and high frequency ultrasound generation

Hyoung Won Baac, Jong G. Ok, Hui Joon Park, Tao Ling, Sung Liang Chen, A. John Hart, L. Jay Guo

Dept. of Mechanical & Automotive Engineering

University of Michigan, Ann Arbor

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

166 Scopus citations

Abstract

We demonstrate carbon nanotube (CNT) composite-based optoacoustic transmitters that generate strong and high frequency ultrasound. The composite consists of CNTs grown on a substrate, which are embedded in elastomeric polymer used as an acoustic transfer medium. Under pulsed laser excitation, the composite generates very strong optoacoustic pressure: 18 times stronger than a Cr film reference and five times stronger than a gold nanoparticle composite with the same polymer. This enhancement persists over a broadband frequency range of up to 120 MHz and is confirmed by calculation. We suggest the CNT-polymer composites as highly efficient optoacoustic transmitters for high resolution ultrasound imaging.

Original language	English
Article number	234104
Journal	Applied Physics Letters
Volume	97
Issue number	23
DOIs	https://doi.org/10.1063/1.3522833
State	Published - 6 Dec 2010

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abstract = "We demonstrate carbon nanotube (CNT) composite-based optoacoustic transmitters that generate strong and high frequency ultrasound. The composite consists of CNTs grown on a substrate, which are embedded in elastomeric polymer used as an acoustic transfer medium. Under pulsed laser excitation, the composite generates very strong optoacoustic pressure: 18 times stronger than a Cr film reference and five times stronger than a gold nanoparticle composite with the same polymer. This enhancement persists over a broadband frequency range of up to 120 MHz and is confirmed by calculation. We suggest the CNT-polymer composites as highly efficient optoacoustic transmitters for high resolution ultrasound imaging.",

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AU - Won Baac, Hyoung

AU - Ok, Jong G.

AU - Park, Hui Joon

AU - Ling, Tao

AU - Chen, Sung Liang

AU - Hart, A. John

AU - Guo, L. Jay

PY - 2010/12/6

Y1 - 2010/12/6

N2 - We demonstrate carbon nanotube (CNT) composite-based optoacoustic transmitters that generate strong and high frequency ultrasound. The composite consists of CNTs grown on a substrate, which are embedded in elastomeric polymer used as an acoustic transfer medium. Under pulsed laser excitation, the composite generates very strong optoacoustic pressure: 18 times stronger than a Cr film reference and five times stronger than a gold nanoparticle composite with the same polymer. This enhancement persists over a broadband frequency range of up to 120 MHz and is confirmed by calculation. We suggest the CNT-polymer composites as highly efficient optoacoustic transmitters for high resolution ultrasound imaging.

AB - We demonstrate carbon nanotube (CNT) composite-based optoacoustic transmitters that generate strong and high frequency ultrasound. The composite consists of CNTs grown on a substrate, which are embedded in elastomeric polymer used as an acoustic transfer medium. Under pulsed laser excitation, the composite generates very strong optoacoustic pressure: 18 times stronger than a Cr film reference and five times stronger than a gold nanoparticle composite with the same polymer. This enhancement persists over a broadband frequency range of up to 120 MHz and is confirmed by calculation. We suggest the CNT-polymer composites as highly efficient optoacoustic transmitters for high resolution ultrasound imaging.

UR - https://www.scopus.com/pages/publications/78650388902

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VL - 97

JO - Applied Physics Letters

JF - Applied Physics Letters

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ER -

Carbon nanotube composite optoacoustic transmitters for strong and high frequency ultrasound generation

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