Preparation and quantitative characterization of polydimethylsiloxane optical phantoms with zinc-phthalocyanine dye absorbers

We described a method for the preparation of polydimethylsiloxane (PDMS) phantoms to mimic the optical properties of biologic tissues at distinct wavelengths ranging from the visible to the near-infrared spectra. The present method for fabricating solid optical tissue phantoms using zinc-phthalocyan...

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Bibliographic Details
Published in:Applied optics (2004) 2018-07, Vol.57 (20), p.5865
Main Authors: Monte, A F G, Reis, A F, Cruz Junior, L B, Antunes, A
Format: Article
Language:English
Subjects:
Absorption spectra
Absorptivity
Chromophores
Infrared spectra
Near infrared radiation
Optical properties
Polydimethylsiloxane
Scattering
Silicone resins
Titanium dioxide
Zinc
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Summary:We described a method for the preparation of polydimethylsiloxane (PDMS) phantoms to mimic the optical properties of biologic tissues at distinct wavelengths ranging from the visible to the near-infrared spectra. The present method for fabricating solid optical tissue phantoms using zinc-phthalocyanine chromophores has demonstrated high photostability with optical absorption coefficients up to 1.0  mm , making this phantom proper with absorption bands ranging from 600 to 850 nm. It also happens that the chromophore absorption coefficient is linear as a function of its concentration inside the previous optical window. The optical scattering properties were quantitatively selected by adding TiO particle concentrations to the PDMS phantom. Thus, the quantitative optical properties of absorption and scattering for a large-batch fabrication were demonstrated, making the zinc-phthalocyanine phantoms suitable for use as a reference standard.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.57.005865