Systematic study of high-frequency ultrasonic transducer design for laser-scanning photoacoustic ophthalmoscopy
Year: 2014
Type: article
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.
Source: Journal of Biomedical Optics
Authors: Teng Ma, Xiangyang Zhang, Chi Tat Chiu, Ruimin Chen, Koping Kirk Shung, Qifa Zhou, Shuliang Jiao
Institution: University of Southern California
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2007075903