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Proceedings Paper

Structural and functional imaging with extended focus dark-field OCT at 1300nm
Author(s): Cedric Blatter; Branislav Grajciar; Robert Huber; Rainer A. Leitgeb
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Paper Abstract

We present an extended focus FDOCT setup with FDML swept source centered at 1310nm. The illumination, preserving its lateral extend over a large depth range thanks to the use of a Bessel beam, is decoupled from the Gaussian detection in order to increase the global sensitivity. The efficient spatial separation enables dark-field imaging. In-vivo measurements in the skin were performed to demonstrate the gain in lateral resolution while preserving the imaging depth. More, the calculation of the speckle variance between B-Scans allows a clear visualization of the microvasculature.

Paper Details

Date Published: 11 February 2011
PDF: 6 pages
Proc. SPIE 7889, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV, 78891D (11 February 2011); doi: 10.1117/12.875594
Show Author Affiliations
Cedric Blatter, Medizinische Univ. Wien (Austria)
Branislav Grajciar, Medizinische Univ. Wien (Austria)
Robert Huber, Ludwig-Maximilians-Univ. München (Germany)
Rainer A. Leitgeb, Medizinische Univ. Wien (Austria)


Published in SPIE Proceedings Vol. 7889:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV
James G. Fujimoto; Joseph A. Izatt; Valery V. Tuchin, Editor(s)

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