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.
© 2011 Optical Society of America
Full Article | PDF ArticleMore Like This
Guenther Paltauf, Robert Nuster, Markus Haltmeier, and Peter Burgholzer
Appl. Opt. 46(16) 3352-3358 (2007)
Yi Wang, Chunhui Li, and Ruikang K. Wang
Opt. Lett. 36(20) 3975-3977 (2011)
Guy Rousseau, Alain Blouin, and Jean-Pierre Monchalin
Biomed. Opt. Express 3(1) 16-25 (2012)