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Opt Lett. 2011 May 1;36(9):1707-9. doi: 10.1364/OL.36.001707.

Adaptive phase compensation for ultracompact laser scanning endomicroscopy.

Author information

  • 1Photonics Group, Physics Department, Imperial College London, Prince Consort Road, London SW7 2BW, UK. alex.thompson08@imperial.ac.uk

Abstract

We present an approach to laser scanning endomicroscopy that requires no moving parts and can be implemented with no distal scanners or optics, permitting extremely compact endoscopic probes to be developed. Our approach utilizes a spatial light modulator to correct for phase variations across a fiber imaging bundle and to encode for arbitrary wavefronts at the distal end of the fiber bundle. Thus, it is possible to realize both focusing and beam scanning at the output of the fiber bundle with no distal components. We present proof of principle results to illustrate three-dimensional scanning of the focal spot and exemplar images of a United States Air Force resolution test chart.

PMID:
21540976
[PubMed - indexed for MEDLINE]
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