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

Correcting the diffusion approximation at the boundary

Not Accessible

Your library or personal account may give you access

Abstract

The diffusion approximation to the radiative transport equation applies for light that has propagated deeply into an optically thick medium, such as biological tissue. It does not accurately model light near boundaries where measurements of scattered light are often taken. Here, we compute a correction to the diffusion approximation at the boundary. This correction requires only small modifications to the standard diffusion approximation used in biomedical optics. In particular, one needs only to compute the coefficients in the boundary condition for the diffusion approximation and an additive correction. We give explicit procedures for these computations. Using numerical results for the steady-state plane–parallel slab problem, we show that this corrected diffusion approximation is a much better approximation than the standard diffusion approximation for modeling the reflectance and transmittance.

© 2011 Optical Society of America

Full Article  |  PDF Article
More Like This
Modeling boundary measurements of scattered light using the corrected diffusion approximation

Ossi Lehtikangas, Tanja Tarvainen, and Arnold D. Kim
Biomed. Opt. Express 3(3) 552-571 (2012)

Information loss and reconstruction in diffuse fluorescence tomography

Petra Bonfert-Taylor, Frederic Leblond, Robert W. Holt, Kenneth Tichauer, Brian W. Pogue, and Edward C. Taylor
J. Opt. Soc. Am. A 29(3) 321-330 (2012)

Modeling the diffuse reflectance due to a narrow beam incident on a turbid medium

Shelley B. Rohde and Arnold D. Kim
J. Opt. Soc. Am. A 29(3) 231-238 (2012)

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 (2)

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 (2)

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 (79)

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