Structural and functional imaging with extended focus dark-field OCT at 1300nm

Cedric Blatter; Branislav Grajciar; Robert Huber; Rainer A. Leitgeb

doi:10.1117/12.875594

11 February 2011 Structural and functional imaging with extended focus dark-field OCT at 1300nm

Cedric Blatter, Branislav Grajciar, Robert Huber, Rainer A. Leitgeb

Proceedings Volume 7889, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV; 78891D (2011) https://doi.org/10.1117/12.875594
Event: SPIE BiOS, 2011, San Francisco, California, United States

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.

Citation Download Citation

Cedric Blatter, Branislav Grajciar, Robert Huber, and Rainer A. Leitgeb "Structural and functional imaging with extended focus dark-field OCT at 1300nm", Proc. SPIE 7889, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV, 78891D (11 February 2011); https://doi.org/10.1117/12.875594

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