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Journal of Biomedical Optics

Systematic study of high-frequency ultrasonic transducer design for laser-scanning photoacoustic ophthalmoscopy
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Paper Abstract

Photoacoustic ophthalmoscopy (PAOM) is a high-resolution in vivo imaging modality that is capable of providing specific optical absorption information for the retina. A high-frequency ultrasonic transducer is one of the key components in PAOM, which is in contact with the eyelid through coupling gel during imaging. The ultrasonic transducer plays a crucial role in determining the image quality affected by parameters such as spatial resolution, signal-to-noise ratio, and field of view. In this paper, we present the results of a systematic study on a high-frequency ultrasonic transducer design for PAOM. The design includes piezoelectric material selection, frequency selection, and the fabrication process. Transducers of various designs were successfully applied for capturing images of biological samples in vivo. The performances of these designs are compared and evaluated.

Paper Details

Date Published: 20 January 2014
PDF: 8 pages
J. Biomed. Opt. 19(1) 016015 doi: 10.1117/1.JBO.19.1.016015
Published in: Journal of Biomedical Optics Volume 19, Issue 1
Show Author Affiliations
Teng Ma, The Univ. of Southern California (United States)
Xiangyang Zhang, The Univ. of Southern California (United States)
Chi Tat Chiu, The Univ. of Southern California (United States)
Ruimin Chen, The Univ. of Southern California (United States)
Koping Kirk Shung, The Univ. of Southern California (United States)
Qifa Zhou, The Univ. of Southern California (United States)
Shuliang Jiao, The Univ. of Southern California (United States)


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