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Proceedings Paper

Visible light optical coherence tomography
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Paper Abstract

We demonstrate for the first time optical coherence tomography (OCT) in the visible wavelength range with unprecedented sub-micrometer axial resolution, achieved by employing a photonic crystal fiber in combination with a sub-15fs Ti:sapphire laser (FEMTOLASERS). The shaped emission spectrum produced by the photonic crystal fiber ranges from 535 nm to 700 nm (centered at ~600 nm) resulting in ~0.9 micrometers axial OCT resolution in air corresponding to ~0.6 micrometers in biological tissue. Preliminary demonstration of the sub-micrometer resolution achieved with this visible light OCT setup is demonstrated on a 2.2 micrometers thick nitrocellulose membrane. The visible wavelength range not only enables extremely high axial resolution for OCT imaging, but also offers an attractive region for spectroscopic OCT.

Paper Details

Date Published: 14 June 2002
PDF: 5 pages
Proc. SPIE 4619, Coherence Domain Optical Methods in Biomedical Science and Clinical Applications VI, (14 June 2002); doi: 10.1117/12.470466
Show Author Affiliations
Boris Povazay, Univ. Wien (Austria)
Alexander A. Apolonski, Technische Univ. Wien (Austria)
Angelika Unterhuber, Femtolasers Produktions GmbH (Austria)
Boris Hermann, Univ. Wien (Austria)
Kostadinka K. Bizheva, Univ. Wien (Austria)
Harald Sattmann, Univ. Wien (Austria)
Phillip St. J. Russell, Univ. of Bath (United Kingdom)
Ferenc Krausz, Technische Univ. Wien (Austria)
Adolf Friedrich Fercher, Univ. Wien (Austria)
Wolfgang Drexler, Univ. Wien (Austria)


Published in SPIE Proceedings Vol. 4619:
Coherence Domain Optical Methods in Biomedical Science and Clinical Applications VI
Valery V. Tuchin; Joseph A. Izatt; James G. Fujimoto, Editor(s)

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