Optical-resolution photoacoustic microscopy by use of a multimode fiber
Optics
2013-06-04 v1
Abstract
We demonstrate Optical-Resolution Photoacoustic Microscopy (OR-PAM), where the optical field is focused and scanned using Digital Phase Conjugation (DPC) through a multimode fiber. The focus is scanned across the field of view using digital means, and the acoustic signal induced is collected by a transducer. Optical-resolution photoacoustic images of a knot made by two absorptive wires are obtained and we report on resolution smaller than 1.5{\mu}m across a 201{\mu}m by 201{\mu}m field of view. The use of a multimode optical fiber for the optical excitation part can pave the way for miniature endoscopes that can provide optical-resolution photoacoustic images at large optical depth.
Keywords
Cite
@article{arxiv.1304.5076,
title = {Optical-resolution photoacoustic microscopy by use of a multimode fiber},
author = {Ioannis N. Papadopoulos and Olivier Simandoux and Salma Farahi and Jean Pierre Huignard and Emmanuel Bossy and Demetri Psaltis and Christophe Moser},
journal= {arXiv preprint arXiv:1304.5076},
year = {2013}
}
Comments
10 pages, 3 figures