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Pulsed ultrasound modulated optical tomography utilizing the harmonic response of lock-in detection

Ruan, H.; Mather, M.L.; Morgan, Stephen P.

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Authors

H. Ruan

M.L. Mather



Abstract

Ultrasound modulated optical tomography (USMOT) can image the optical properties of a scattering
medium at a spatial resolution approaching that of ultrasound (US). A lock-in parallel speckle detection
technique is proposed to detect pulsed US modulated light using a multipixel detector. The frequency
components of the pass band match those of the US pulse train and provide efficient detection. The modulation
depth is extracted by taking the difference between a pair of speckle patterns modulated by a pair
of phase-inversed US bursts. Modification to pulse inversion mode enables the second harmonic US
modulation due to nonlinear US propagation to be detected. © 2013 Optical Society of America
OCIS codes: (110.6150) Speckle imaging; (110.0113) Imaging through turbid media.

Citation

Ruan, H., Mather, M., & Morgan, S. P. (2013). Pulsed ultrasound modulated optical tomography utilizing the harmonic response of lock-in detection. Applied Optics, 52(19), https://doi.org/10.1364/AO.52.004755

Journal Article Type Article
Publication Date Jul 1, 2013
Deposit Date Mar 31, 2014
Publicly Available Date Mar 31, 2014
Journal Applied Optics
Print ISSN 1559-128X
Electronic ISSN 2155-3165
Publisher Optical Society of America
Peer Reviewed Peer Reviewed
Volume 52
Issue 19
DOI https://doi.org/10.1364/AO.52.004755
Public URL https://nottingham-repository.worktribe.com/output/715376
Publisher URL http://www.opticsinfobase.org/ao/abstract.cfm?uri=ao-52-19-4755

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