Experimental set-up and Monte-Carlo model for the determination of optical tissue properties in the wavelength range 330 to 1100 nm

Andre Roggan; Hans Joerg Albrecht; Klaus Doerschel; Olaf Minet; Gerhard J. Mueller

doi:10.1117/12.199205

18 January 1995 Experimental set-up and Monte-Carlo model for the determination of optical tissue properties in the wavelength range 330 to 1100 nm

Andre Roggan, Hans Joerg Albrecht, Klaus Doerschel, Olaf Minet, Gerhard J. Mueller

Author Affiliations +

Proceedings Volume 2323, Laser Interaction with Hard and Soft Tissue II; (1995) https://doi.org/10.1117/12.199205
Event: International Symposium on Biomedical Optics Europe '94, 1994, Lille, France

Abstract

The optical properties of different types of tissue were measured in the wavelength range 330 - 1100 nm. The measurements were carried out in native as well as in coagulated tissues. We used the double integrating sphere technique to provide reflection and transmission measurements and a special homogenizing technique to prepare the tissue. The optical properties were evaluated using an inverse Monte-Carlo simulation, considering the geometry of the experimental set-up. All tissues show characteristic absorption bands at 420 nm and 550 nm, related to the strong absorption of hemoglobin. After coagulation the scattering increases drastically while absorption remains nearly unchanged. The anisotropy factor g increases with increasing wavelength and drops down slightly after coagulation.

Citation Download Citation

Andre Roggan, Hans Joerg Albrecht, Klaus Doerschel, Olaf Minet, and Gerhard J. Mueller "Experimental set-up and Monte-Carlo model for the determination of optical tissue properties in the wavelength range 330 to 1100 nm", Proc. SPIE 2323, Laser Interaction with Hard and Soft Tissue II, (18 January 1995); https://doi.org/10.1117/12.199205

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