TY  - GEN
UR  - https://doi.org/10.1117/12.2037283
ID  - discovery1419130
T3  - Proceedings of SPIE
N2  - Novel ultrasound transducers were created with a composite of carbon nanotubes (CNTs) and polydimethylsiloxane (PDMS) that was dip coated onto the end faces of optical fibers. The CNTs were functionalized with oleylamine to allow for their dissolution in xylene, a solvent of PDMS. Ultrasound pulses were generated by illuminating the composite coating with pulsed laser light. At distances of 2 to 16 mm from the end faces, ultrasound pressures ranged from 0.81 to 0.07 MPa and from 0.27 to 0.03 MPa with 105 and 200 ?m core fibers, respectively. Using an optical fiber hydrophone positioned adjacent to the coated 200 痠 core optical fiber, ultrasound reflectance measurements were obtained from the outer surface of a sheep heart ventricle. The results of this study suggest that ultrasound transducers that comprise optical fibers with CNT-PDMS composite coatings may be suitable for miniature medical imaging probes.
Y1  - 2014/02/01/
A1  - Mosse, CA
A1  - Colchester, RJ
A1  - Bhachu, DS
A1  - Zhang, EZ
A1  - Papakonstantinou, I
A1  - Desjardins, AE
PB  - SPIE
SP  - 89430P
EP  - 1
AV  - public
SN  - 0277-786X
TI  - Fiber-optic Ultrasound Transducers with Carbon/PDMS Composite Coatings
CY  - San Francisco, CA, United States
KW  - Science & Technology
KW  -  Physical Sciences
KW  -  Life Sciences & Biomedicine
KW  -  Optics
KW  -  Radiology
KW  -  Nuclear Medicine & Medical Imaging
KW  -  Laser-generated ultrasound
KW  -  photoacoustic
KW  -  optical fiber
KW  -  carbon nanotubes
KW  -  PDMS
KW  -  FILM
N1  - This version is the version of record. For information on re-use, please refer to the publisher?s terms and conditions.
ER  -