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Biomedical Optics Express

Biomedical Optics Express

  • Editor: Joseph A. Izatt
  • Vol. 3, Iss. 11 — Nov. 1, 2012
  • pp: 2694–2698

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, and Shuliang Jiao  »View Author Affiliations


Biomedical Optics Express, Vol. 3, Issue 11, pp. 2694-2698 (2012)
http://dx.doi.org/10.1364/BOE.3.002694


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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.

© 2012 OSA

OCIS Codes
(110.5100) Imaging systems : Phased-array imaging systems
(170.0170) Medical optics and biotechnology : Medical optics and biotechnology
(170.4460) Medical optics and biotechnology : Ophthalmic optics and devices
(170.5120) Medical optics and biotechnology : Photoacoustic imaging
(110.5125) Imaging systems : Photoacoustics

ToC Category:
Photoacoustic Imaging and Spectroscopy

History
Original Manuscript: June 13, 2012
Revised Manuscript: August 26, 2012
Manuscript Accepted: September 28, 2012
Published: October 2, 2012

Virtual Issues
BIOMED 2012 (2012) Biomedical Optics Express

Citation
Fan Zheng, Xiangyang Zhang, Chi Tat Chiu, Bill L. Zhou, K. Kirk Shung, Hao F. Zhang, and Shuliang Jiao, "Laser-scanning photoacoustic microscopy with ultrasonic phased array transducer," Biomed. Opt. Express 3, 2694-2698 (2012)
http://www.opticsinfobase.org/boe/abstract.cfm?URI=boe-3-11-2694


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