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Published August 1, 2002 | Published
Journal Article Open

Autocorrelation of scattered laser light for ultrasound-modulated optical tomography in dense turbid media

Abstract

Based on measurement of the intensity autocorrelation function, a new method to determine the modulation depth of scattered laser light modulated by an ultrasonic wave in turbid media was applied to ultrasound-modulated optical tomography. Good signal-to-noise ratios and high sensitivities were demonstrated. Images of double optically absorbing objects buried in a highly optically scattering gel sample were obtained. The contrast was more than 10%, and the spatial resolution was approximately 2 mm.

Additional Information

© 2002 Optical Society of America. Received 15 January 2002; revised manuscript received 9 April 2002. This project was sponsored in part by the National Institutes of Health grant R01 CA71980; National Science Foundation grant BES-9734491; and Texas Higher Education Coordinating Board grant 000512-0123-1999. H. Li is a visiting scholar at Texas A&M University sponsored by the China Scholarship Council.

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August 19, 2023
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