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Biomedical Optics Express

Biomedical Optics Express

  • Editor: Joseph A. Izatt
  • Vol. 1, Iss. 1 — Aug. 2, 2010
  • pp: 176–185

Quantitative comparison of the OCT imaging depth at 1300 nm and 1600 nm

V. M. Kodach, J. Kalkman, D. J. Faber, and T. G. van Leeuwen  »View Author Affiliations

Biomedical Optics Express, Vol. 1, Issue 1, pp. 176-185 (2010)

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One of the present challenges in optical coherence tomography (OCT) is the visualization of deeper structural morphology in biological tissues. Owing to a reduced scattering, a larger imaging depth can be achieved by using longer wavelengths. In this work, we analyze the OCT imaging depth at wavelengths around 1300 nm and 1600 nm by comparing the scattering coefficient and OCT imaging depth for a range of Intralipid concentrations at constant water content. We observe an enhanced OCT imaging depth for 1600 nm compared to 1300 nm for Intralipid concentrations larger than 4 vol.%. For higher Intralipid concentrations, the imaging depth enhancement reaches 30%. The ratio of scattering coefficients at the two wavelengths is constant over a large range of scattering coefficients and corresponds to a scattering power of 2.8 ± 0.1. Based on our results we expect for biological tissues an increase of the OCT imaging depth at 1600 nm compared to 1300 nm for samples with high scattering power and low water content.

© 2010 OSA

OCIS Codes
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(170.4500) Medical optics and biotechnology : Optical coherence tomography
(290.7050) Scattering : Turbid media

ToC Category:
Optical Coherence Tomography

Original Manuscript: May 26, 2010
Revised Manuscript: July 2, 2010
Manuscript Accepted: July 3, 2010
Published: July 16, 2010

Virtual Issues
Advances in Optical Coherence Tomography, Photoacoustic Imaging, and Microscopy (2010) Biomedical Optics Express

V. M. Kodach, J. Kalkman, D. J. Faber, and T. G. van Leeuwen, "Quantitative comparison of the OCT imaging depth at 1300 nm and 1600 nm," Biomed. Opt. Express 1, 176-185 (2010)

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