Optical cross-sectional imaging with pulse ultrasound wave assistance
JOSA A, Vol. 18, Issue 7, pp. 1531-1534 (2001)
http://dx.doi.org/10.1364/JOSAA.18.001531
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Abstract
We have developed an optical cross-sectional imaging method for turbid media with the aid of a pulse ultrasound wave. Observation of deep regions in turbid media, such as tissue samples, is difficult owing to the rapid dispersion of an incoming laser beam by scattering. A pulse ultrasound wave, which is less scattered in tissues, can indicate the measuring point on the basis of the change of the optical scattering properties in a localized region. A depth-resolving capability can be achieved from the time-dependent measurement of the scattered-light intensity as the pulse ultrasound wave propagates in the sample. We verified the method by observing absorptive objects embedded in silicone rubber and by obtaining the cross-sectional image of an absorbing object surrounded by a strong scattering medium.
© 2001 Optical Society of America
[Optical Society of America ]
OCIS Codes
(110.0110) Imaging systems : Imaging systems
(110.7050) Imaging systems : Turbid media
(110.7170) Imaging systems : Ultrasound
(120.5820) Instrumentation, measurement, and metrology : Scattering measurements
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(290.7050) Scattering : Turbid media
Citation
Masaki Hisaka, Tadao Sugiura, and Satoshi Kawata, "Optical cross-sectional imaging with pulse ultrasound wave assistance," J. Opt. Soc. Am. A 18, 1531-1534 (2001)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-18-7-1531
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