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Conferences > ECBO > 2003 > OCTI > 5140_84

Precision of quantitative absorption measurement with spectroscopic optical coherence tomography

Boris Hermann, Kostadinka Bizheva, Angelika Unterhuber, Harald Sattmann, Boris Považay, Adolf F. Fercher, and Wolfgang Drexler

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Abstract

A state of the art TiAl2O3 laser (λ = 780 nm, ∆λ = 170 nm, Pout = 350 mW), interfaced to a free space OCT system was used to quantitatively extract spatially resolved absorption profiles from non-scattering phantoms. The sources of error related to instrument performance and measurement procedure were investigated. Absorption as small as 0.2 mm−1 was measured in phantoms as thin as 180 µm with precision better than 5% over 70 nm wavelength range.

© 2003 SPIE

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