Format

Send to

Choose Destination
Opt Lett. 2011 Mar 15;36(6):981-3. doi: 10.1364/OL.36.000981.

Downstream Fabry-Perot interferometer for acoustic wave monitoring in photoacoustic tomography.

Author information

1
Center for Non-Destructive Testing (RECENDT) GmbH, Linz, Austria. ro.nuster@uniā€graz.at

Abstract

An optical detection setup consisting of a focused laser beam fed into a downstream Fabry-Perot interferometer (FPI) for demodulation of acoustically generated optical phase variations is investigated for its applicability in photoacoustic tomography. The device measures the time derivative of acoustic signals integrated along the beam. Compared to a setup where the detection beam is part of a Mach-Zehnder interferometer, the signal-to-noise ratio of the FPI is lower, but the image quality of the two devices is similar. Using the FPI in a photoacoustic tomograph allows scanning the probe beam around the imaging object without moving the latter.

PMID:
21403749
DOI:
10.1364/OL.36.000981
[Indexed for MEDLINE]

Supplemental Content

Loading ...
Support Center