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Proceedings Paper

Photoacoustic remote sensing microscopy with lock-in amplification
Author(s): Wei Shi; Parsin Hajireza; Kevan Bell; Roger Zemp
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Paper Abstract

High sensitive detection with lock-in amplification can provide high signal noise ratio even when noise is in orders of magnitude higher than the signal. Here we report to combine lock-in amplification with a novel photoacoustic remote sensing (PARS) technology to achieve high resolution, high contrast, all optical non-contact photoacoustic imaging at depth beyond optical scattering limitation. We demonstrate phantom measurements from PARS with lock-in technology were several orders of magnitude more sensitive than those from PARS with the broadband detection techniques.

Paper Details

Date Published: 3 March 2017
PDF: 6 pages
Proc. SPIE 10064, Photons Plus Ultrasound: Imaging and Sensing 2017, 1006447 (3 March 2017); doi: 10.1117/12.2253195
Show Author Affiliations
Wei Shi, Univ. of Alberta (Canada)
Parsin Hajireza, Univ. of Alberta (Canada)
Kevan Bell, Univ. of Alberta (Canada)
Roger Zemp, Univ. of Alberta (Canada)

Published in SPIE Proceedings Vol. 10064:
Photons Plus Ultrasound: Imaging and Sensing 2017
Alexander A. Oraevsky; Lihong V. Wang, Editor(s)

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