AI Article Synopsis
- * The FPI setup has a lower signal-to-noise ratio compared to a Mach-Zehnder interferometer, but both systems produce similar image quality.
- * This configuration permits the probe beam to scan around the imaging object without needing to move the object itself, enhancing the imaging process.
Article 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.
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| http://dx.doi.org/10.1364/OL.36.000981 | DOI Listing |
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