Laser-scanning photoacoustic microscopy with ultrasonic phased array transducer

Fan Zheng; Xiangyang Zhang; Chi Tat Chiu; Bill L. Zhou; K. Kirk Shung; Hao F. Zhang; Shuliang Jiao

doi:10.1364/BOE.3.002694

Laser-scanning photoacoustic microscopy with ultrasonic phased array transducer

Fan Zheng, Xiangyang Zhang, Chi Tat Chiu, Bill L. Zhou, K. Kirk Shung, Hao F. Zhang, Shuliang Jiao^*

^*Corresponding author for this work

Biomedical Engineering

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

12 Scopus citations

Abstract

In this paper, we report our latest progress on proving the concept that ultrasonic phased array can improve the detection sensitivity and field of view (FOV) in laser-scanning photoacoustic microscopy (LS-PAM). A LS-PAM system with a one-dimensional (1D) ultrasonic phased array was built for the experiments. The 1D phased array transducer consists of 64 active elements with an overall active dimension of 3.2 mm × 2 mm. The system was tested on imaging phantom and mouse ear in vivo. Experiments showed a 15 dB increase of the signal-to-noise ratio (SNR) when beamforming was employed compared to the images acquired with each single element. The experimental results demonstrated that ultrasonic phased array can be a better candidate for LS-PAM in high sensitivity applications like ophthalmic imaging.

Original language	English (US)
Pages (from-to)	2694-2698
Number of pages	5
Journal	Biomedical Optics Express
Volume	3
Issue number	11
DOIs	https://doi.org/10.1364/BOE.3.002694
State	Published - Nov 1 2012

ASJC Scopus subject areas

Biotechnology
Atomic and Molecular Physics, and Optics

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abstract = "In this paper, we report our latest progress on proving the concept that ultrasonic phased array can improve the detection sensitivity and field of view (FOV) in laser-scanning photoacoustic microscopy (LS-PAM). A LS-PAM system with a one-dimensional (1D) ultrasonic phased array was built for the experiments. The 1D phased array transducer consists of 64 active elements with an overall active dimension of 3.2 mm × 2 mm. The system was tested on imaging phantom and mouse ear in vivo. Experiments showed a 15 dB increase of the signal-to-noise ratio (SNR) when beamforming was employed compared to the images acquired with each single element. The experimental results demonstrated that ultrasonic phased array can be a better candidate for LS-PAM in high sensitivity applications like ophthalmic imaging.",

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AU - Zhang, Hao F.

AU - Jiao, Shuliang

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Laser-scanning photoacoustic microscopy with ultrasonic phased array transducer

Abstract

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