Ultrasonic modulation of diffuse light in turbid media

Lihong V. Wang; Xuemei Zhao

doi:10.1117/12.280273

18 August 1997 Ultrasonic modulation of diffuse light in turbid media

Lihong V. Wang, Xuemei Zhao

Proceedings Volume 2979, Optical Tomography and Spectroscopy of Tissue: Theory, Instrumentation, Model, and Human Studies II; (1997) https://doi.org/10.1117/12.280273
Event: BiOS '97, Part of Photonics West, 1997, San Jose, CA, United States

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.

Citation Download Citation

Lihong V. Wang and 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); https://doi.org/10.1117/12.280273

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available