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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Integrating sphere effect in whole-bladder-wall photodynamic therapy: II. The influence of urine at 458, 488, 514 and 630 nm optical irradiation.
TL;DR: In this paper, the authors measured the wall fluence rate at the walls of two piglet bladders during in vivo and in vitro WBW optical irradiations at 458, 488, 514 and 630 nm.
Journal ArticleDOI
In vivo deep tissue imaging using wavefront shaping optical coherence tomography
Hyeonseung Yu,Peter Lee,KyeoReh Lee,Jaeduck Jang,Jae-guyn Lim,Wooyoung Jang,Yong Jeong,YongKeun Park +7 more
TL;DR: In vivo OCT imaging of a live mouse using wavefront shaping (WS) to enhance the penetration depth is presented using a spectral-domain OCT system for complex WS of an incident beam which resulted in the optimal delivery of light energy into deep tissue.
Journal ArticleDOI
Development of a multichannel hyperspectral imaging probe for property and quality assessment of horticultural products
TL;DR: In this paper, a multichannel hyperspectral imaging probe for property and quality assessment of horticultural and food products is presented, which consists of a 910-μm diameter fiber as a point light source and 30 light receiving fibers of three sizes arranged in a symmetrical pattern.
Journal ArticleDOI
Use of optical skin phantoms for preclinical evaluation of laser efficiency for skin lesion therapy
Maciej S. Wróbel,Małgorzata Jędrzejewska-Szczerska,Stanisław Galla,L. Piechowski,Mirosław Sawczak,Alexey Popov,Alexander Bykov,Valery V. Tuchin,Adam Cenian +8 more
TL;DR: This study presents the application of optical phantoms for assessment of a newly developed 975-nm pulsed diode laser system for dermatological purposes and yielded results of heating with regard to phantom thickness and absorption, as well as laser settings.
Journal ArticleDOI
Image quality in time-resolved transillumination of highly scattering media
TL;DR: Using a photon-counting setup and a streak-camera arrangement with time resolutions of 35 and 6 ps, respectively, it is found that small detection angles improve the spatial resolution of a time-gated transillumin tion technique applied to turbid media.
References
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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.