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Ultrasonic modulation of diffuse light in turbid media

Wang, Lihong and Zhao, Xuemei (1997) Ultrasonic modulation of diffuse light in turbid media. In: Optical Tomography and Spectroscopy of Tissue: Theory, Instrumentation, Model, and Human Studies II. Proceedings of SPIE. No.2979. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 24-35. ISBN 9780819423900. https://resolver.caltech.edu/CaltechAUTHORS:20181207-161548786

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Abstract

Continuous-wave ultrasonic modulation of laser light has been used to image objects buried in tissue-simulating turbid media. The ultrasonic wave focused into the turbid media modulated the laser light passing through the ultrasonic field. The modulated laser light collected by a photomultiplier tube reflected primarily the local mechanical and optical properties in the focal zone. Modulated signal was estimated using diffusion theory. The dependence of the ultrasound-modulated optical signal on the off-axis distance of the detector from the optic axis was studied. The mechanisms of ultrasonic modulation of light were discussed.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.280273DOIArticle
ORCID:
AuthorORCID
Wang, Lihong0000-0001-9783-4383
Additional Information:© 1997 Society of Photo-Optical Instrumentation Engineers (SPIE). This project was sponsored in part by the National Institutes of Health grant R29 CA68562 and The Whitaker Foundation.
Funders:
Funding AgencyGrant Number
NIHR29 CA68562
Whitaker FoundationUNSPECIFIED
Subject Keywords:Ultrasonic modulation, acousto-optics, optical imaging, optical tomography, turbid media
Series Name:Proceedings of SPIE
Issue or Number:2979
Record Number:CaltechAUTHORS:20181207-161548786
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20181207-161548786
Official Citation:Lihong V. Wang, Xuemei Zhao, "Ultrasonic modulation of diffuse light in turbid media," Proc. SPIE 2979, Optical Tomography and Spectroscopy of Tissue: Theory, Instrumentation, Model, and Human Studies II, (18 August 1997); doi: 10.1117/12.280273
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:91613
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:11 Dec 2018 18:15
Last Modified:03 Oct 2019 20:36

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