Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Steady-state reflectance spectroscopy in the P3 approximation

Not Accessible

Your library or personal account may give you access

Abstract

The Green’s function of the steady-state radiative-transport equation is derived in the P3 approximation for isotropic sources. It is demonstrated that the P3 approximation models the radiance in highly absorbing media or close to sources more accurately than does diffusion theory. Boundary conditions consistent with the P3 approximation are also developed for semi-infinite media bounded by a nonscattering medium. Expressions for the reflectance remitted from media interrogated by a normally incident pencil beam are derived and fitted to simulated and experimental reflectance data from media having optical properties typical of biological tissue. The reconstructed optical properties are accurate to within ±10% in absorption and scattering for source–detector separations as small as 0.43 mm and albedos as low as 0.59. Methods for simplifying these expressions given some a priori knowledge of the scattering phase function are discussed.

© 2001 Optical Society of America

Full Article  |  PDF Article
More Like This
Determination of optical properties of turbid medium from relative interstitial CW radiance measurements using the incomplete P3 approximation

Lingling Liu, Wenbo Wan, Zhuanping Qin, Limin Zhang, Jingying Jiang, Yihan Wang, Feng Gao, and Huijuan Zhao
Opt. Express 25(21) 25295-25309 (2017)

Monte Carlo study of diffuse reflectance at source–detector separations close to one transport mean free path

Frédéric Bevilacqua and Christian Depeursinge
J. Opt. Soc. Am. A 16(12) 2935-2945 (1999)

P3 solution for the total steady-state and time-resolved reflectance and transmittance from a turbid slab

André Liemert, Fabrizio Martelli, Tiziano Binzoni, and Alwin Kienle
Appl. Opt. 58(15) 4143-4148 (2019)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (18)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (77)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved