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A model for ultrasound modulated light in a turbid medium

Hollmann, Joseph L. and Horstmeyer, Roarke and Yang, Changhuei and DiMarzio, Charles A. (2014) A model for ultrasound modulated light in a turbid medium. In: Three-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XXI. Proceedings of SPIE. No.8949. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 89490U. ISBN 0819498629. https://resolver.caltech.edu/CaltechAUTHORS:20180711-104521720

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Abstract

The ability to focus light in most tissue degrades quickly with depth due to high optical scattering. Researchers have investigated using both ultrasound (US) and light synergistically to overcome this difficulty. Ultrasound has been utilized to modulated light within tissue to create a diffusive wave at that is modulated at the US frequency. Recently, there has been interest in the modulated sidebands which reside at optical frequency plus or minus the US frequency. This paper will discuss a model for US-light interactions in a scattering medium. We will use this model to relate the radiance in the probe beam to the radiance in the diffusive wave. We will then employ the P-1 approximation to the radiative transport equation to find the fluence and flux of the modulated wave. We will use these parameters to write a diffusion equation for the modulated wave that can be described in terms of the incoming optical power, and the US intensity and geometry.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.2041179DOIArticle
ORCID:
AuthorORCID
Horstmeyer, Roarke0000-0002-2480-9141
Yang, Changhuei0000-0001-8791-0354
Additional Information:© 2014 Society of Photo-Optical Instrumentation Engineers (SPIE).
Series Name:Proceedings of SPIE
Issue or Number:8949
Record Number:CaltechAUTHORS:20180711-104521720
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180711-104521720
Official Citation:Joseph L. Hollmann, Roarke Horstmeyer, Changhuei Yang, Charles A. DiMarzio, "A model for ultrasound modulated light in a turbid medium", Proc. SPIE 8949, Three-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XXI, 89490U (12 March 2014); doi: 10.1117/12.2041179; https://doi.org/10.1117/12.2041179
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:87754
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:11 Jul 2018 18:04
Last Modified:03 Oct 2019 19:59

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