Journal ArticleDOI
Determining the optical properties of turbid media by using the adding–doubling method
TLDR
A method is described for finding the optical properties of a slab of turbid material by using total reflection, unscattered transmission, and total transmission measurements and the intrinsic error in the method is < 3% when four quadrature points are used.Abstract:
A method is described for finding the optical properties (scattering, absorption, and scattering anisotropy) of a slab of turbid material by using total reflection, unscattered transmission, and total transmission measurements. This method is applicable to homogeneous turbid slabs with any optical thickness, albedo, or phase function. The slab may have a different index of refraction from its surroundings and may or may not be bounded by glass. The optical properties are obtained by iterating an adding–doubling solution of the radiative transport equation until the calculated values of the reflection and transmission match the measured ones. Exhaustive numerical tests show that the intrinsic error in the method is <3% when four quadrature points are used.read more
Citations
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Journal ArticleDOI
Determination of the bulk scattering parameters of diffusing materials
Sven Leyre,Frédéric Leloup,Jan Audenaert,Guy Durinck,Johan Hofkens,Geert Deconinck,Peter Hanselaer +6 more
TL;DR: The bulk scattering parameters of a concentration series of milk diluted with water were determined with the inverse adding-doubling method and the macroscopic angular scattering profile was simulated using ray tracing software.
Journal ArticleDOI
Diffuse reflectance spectroscopy characterization of hemoglobin and intralipid solutions: in vitro measurements with continuous variation of absorption and scattering.
Sergio Hernández,V.D. Rodríguez,J. Pérez,Felipe A Martín,Miguel A. Castellano,José Luis González-Mora +5 more
TL;DR: This study uses reflectance spectroscopy in tissue-like phantoms to better understand the scattering phenomena in biological tissue, and to obtain absolute concentration of absorber particles when a homogeneous medium can be assumed.
Journal ArticleDOI
Optical properties of mouse brain tissue after optical clearing with FocusClear
Austin J. Moy,Bernard V. Capulong,Rolf B. Saager,Matthew P. Wiersma,Patrick C. Lo,Anthony J. Durkin,Bernard Choi +6 more
TL;DR: Increased tissue transparency with longer optical clearing time and an analogous increase in OCP is observed, suggesting that optical histology can improve ex vivo visualization of several fluorescent probes.
Proceedings ArticleDOI
Characterization of plasmon-resonant gold nanorods as near-infrared optical contrast agents investigated using a double-integrating sphere system
TL;DR: The potential for using plasmon-resonant gold nanorods as targeted contrast agents for in vivo coherent optical imaging is investigated in this article, where separation of the relative strengths of light scattering and absorption of plasmorons are measured with a double-integrating sphere system at 774 and 1304nm.
Journal ArticleDOI
Method to determine the optical properties of turbid media
TL;DR: A novel method to determine the optical properties, namely, absorption coefficient, scattering coefficient, and anisotropy factor of turbid solutions, single constituent or multiconstituent, is presented.
References
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Journal ArticleDOI
A simplex method for function minimization
John A. Nelder,R. Mead +1 more
TL;DR: A method is described for the minimization of a function of n variables, which depends on the comparison of function values at the (n 41) vertices of a general simplex, followed by the replacement of the vertex with the highest value by another point.
Book
Introduction to Numerical Analysis
Josef Stoer,Roland Bulirsch +1 more
TL;DR: This well written book is enlarged by the following topics: B-splines and their computation, elimination methods for large sparse systems of linear equations, Lanczos algorithm for eigenvalue problems, implicit shift techniques for theLR and QR algorithm, implicit differential equations, differential algebraic systems, new methods for stiff differential equations and preconditioning techniques.
Journal ArticleDOI
A review of the optical properties of biological tissues
TL;DR: The known optical properties (absorption, scattering, total attenuation, effective attenuation and/or anisotropy coefficients) of various biological tissues at a variety of wavelengths are reviewed in this article.
Journal ArticleDOI
New contributions to the optics of intensely light-scattering materials.
TL;DR: In this paper, the Gurevic and Judd formulas were derived from the Kubelka-Munk differential equations, and they are exact under the same conditions as in this paper, that is, when the material is perfectly dull and when the light, is perfectly diffused or if it is parallel and hits the specimen under an angle of 60° from normal.