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Updated: Jun 19, 2026

Wideband Optical Detector of Ultrasound for Medical Imaging Applications
Published on: May 11, 2014
Ultrasound-modulated optical imaging using a high-power pulsed laser and a double-pass confocal Fabry-Perot
Guy Rousseau1, Alain Blouin, Jean-Pierre Monchalin
1Industrial Materials Institute, National Research Council of Canada, 75 de Mortagne Boulevard, Boucherville, Québec, Canada J4B 6Y4. guy.rousseau@cnrc-nrc.gc.ca
Abstract:
We report the use of short ultrasonic bursts and high-peak-power laser pulses to detect absorbing objects in thick scattering media (SMs). The detection of ultrasound-tagged photons is performed with a double-pass confocal Fabry-Perot interferometer. Photons shifted by the fundamental and harmonic frequencies of the ultrasonic bursts were observed. Absorbing objects were detected in 30- and 60-mm-thick SMs including a sample of biological tissue.

