Quantitative characterization of turbid media using pressure contrast acousto-optic imaging
Optics Letters, Vol. 34, Issue 18, pp. 2850-2852 doi:10.1364/OL.34.002850
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- OCIS Codes:
- (110.7050) Imaging systems : Turbid media
- (110.7170) Imaging systems : Ultrasound
- (160.5320) Materials : Photorefractive materials
- (170.3880) Medical optics and biotechnology : Medical and biological imaging
- (170.6935) Medical optics and biotechnology : Tissue characterization
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Citation
Puxiang Lai, Ronald A. Roy, and Todd W. Murray, "Quantitative characterization of turbid media using pressure contrast acousto-optic imaging," Opt. Lett. 34, 2850-2852 (2009)
http://www.opticsinfobase.org/VJBO/abstract.cfm?URI=ol-34-18-2850
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An acousto-optic imaging technique suitable for the local and quantitative determination of subsurface optical properties in turbid media is presented. Acousto-optic signals elicited by ultrasound pulses at two different peak pressures in turbid media are detected by using photorefractive-crystal-based interferometry. The ratio of the measured signals, once calibrated for a particular set of pressure pulses, is found to give a direct measure of the reduced scattering coefficient of the interaction region between the light and sound. Measurements of the reduced scattering coefficient of inclusions buried in diffuse tissue phantoms are demonstrated.
© 2009 Optical Society of America
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History
Original Manuscript: May 6, 2009
Manuscript Accepted: July 31, 2009
Revised Manuscript: July 17, 2009
Published: September 14, 2009
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Boston University
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