Optical-resolution photoacoustic microscopy by use of a multimode fiber

We demonstrate Optical-Resolution Photoacoustic Microscopy (OR-PAM), where the optical field is focused and scanned using Digital Phase Conjugation 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 x 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. (C) 2013 AIP Publishing LLC.


Published in:
Applied Physics Letters, 102, 21
Year:
2013
Publisher:
Melville, American Institute of Physics
ISSN:
0003-6951
Laboratories:




 Record created 2013-10-01, last modified 2018-03-17


Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)