20 January 2014 Systematic study of high-frequency ultrasonic transducer design for laser-scanning photoacoustic ophthalmoscopy
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J. of Biomedical Optics, 19(1), 016015 (2014). doi:10.1117/1.JBO.19.1.016015
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.
© 2014 Society of Photo-Optical Instrumentation Engineers (SPIE)
Teng Ma, Xiangyang Zhang, Chi Tat Chiu, Ruimin Chen, Koping Kirk Shung, Qifa Zhou, Shuliang Jiao, "Systematic study of high-frequency ultrasonic transducer design for laser-scanning photoacoustic ophthalmoscopy," Journal of Biomedical Optics 19(1), 016015 (20 January 2014). https://doi.org/10.1117/1.JBO.19.1.016015
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