All-optical endoscopic probe for high resolution 3D photoacoustic tomography

R. Ansari; E. Zhang; A. E. Desjardins; P. C. Beard

doi:10.1117/12.2250617

23 March 2017 All-optical endoscopic probe for high resolution 3D photoacoustic tomography

R. Ansari, E. Zhang, A. E. Desjardins, P. C. Beard

Proceedings Volume 10064, Photons Plus Ultrasound: Imaging and Sensing 2017; 100641W (2017) https://doi.org/10.1117/12.2250617
Event: SPIE BiOS, 2017, San Francisco, California, United States

Abstract

A novel all-optical forward-viewing photoacoustic probe using a flexible coherent fibre-optic bundle and a Fabry- Perot (FP) ultrasound sensor has been developed. The fibre bundle, along with the FP sensor at its distal end, synthesizes a high density 2D array of wideband ultrasound detectors. Photoacoustic waves arriving at the sensor are spatially mapped by optically scanning the proximal end face of the bundle in 2D with a CW wavelength-tunable interrogation laser. 3D images are formed from the detected signals using a time-reversal image reconstruction algorithm. The system has been characterized in terms of its PSF, noise-equivalent pressure and field of view. Finally, the high resolution 3D imaging capability has been demonstrated using arbitrary shaped phantoms and duck embryo.

Conference Presentation

Citation Download Citation

R. Ansari, E. Zhang, A. E. Desjardins, and P. C. Beard "All-optical endoscopic probe for high resolution 3D photoacoustic tomography", Proc. SPIE 10064, Photons Plus Ultrasound: Imaging and Sensing 2017, 100641W (23 March 2017); https://doi.org/10.1117/12.2250617

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available