Acousto-optic modulation by pulsed optical excitation: implications to imaging in turbid media
Optics Letters, Vol. 35, Issue 16, pp. 2780-2782 (2010)
http://dx.doi.org/10.1364/OL.35.002780
Enhanced HTML 
Acrobat PDF (160 KB)
Abstract
We show that the transient response of acoustically modulated optical flux in a turbid medium irradiated by a pulsed point source of light is delayed in time relative to the light-alone flux obtained in the ab sence of acoustic modulation. The time delay is shown to result from an initial phase of flux reversal, as determined by the time point of the input pulse onset with reference to the ultrasound cycle. Both the time delay and amplitude of modulation are shown to be dependent on the effective attenuation coefficient of the medium. Application of a periodic train of excitation pulses spaced at equal intervals at, or in multiples of, the ultrasound period enables a time-locked detection of the modulated light, without the deleterious effects caused by speckle artifacts.
© 2010 Optical Society of America
OCIS Codes
(110.7050) Imaging systems : Turbid media
(110.7170) Imaging systems : Ultrasound
(170.0110) Medical optics and biotechnology : Imaging systems
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(110.0113) Imaging systems : Imaging through turbid media
(140.3538) Lasers and laser optics : Lasers, pulsed
ToC Category:
Scattering
History
Original Manuscript: April 15, 2010
Manuscript Accepted: July 4, 2010
Published: August 13, 2010
Virtual Issues
Vol. 5, Iss. 13 Virtual Journal for Biomedical Optics
Citation
Joseph S. Paul, Deep Sen, and Socrates Dokos, "Acousto-optic modulation by pulsed optical excitation: implications to imaging in turbid media," Opt. Lett. 35, 2780-2782 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-16-2780
You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
Related Journal Articles 
- Frequency-swept ultrasound-modulated optical tomography in biological tissue by use of parallel detection (OL)
- Theoretical and Experimental Studies of Ultrasound-Modulated Optical Tomography in Biological Tissue (AO)
- Optical cross-sectional imaging with pulse ultrasound wave assistance (JOSAA)
- Direct, noninvasive detection of photon density in turbid media (OL)
- Methods for parallel-detection-based ultrasound-modulated optical tomography (AO)
Related Conference Papers
- Compensated transillumination of a human hand
- Optical characterization of breast tumors by frequency-domain optical mammography
- Looking for the fast signal: Neuronal and hemodynamic evoked responses of the sensory-motor cortex
- From Macro to Micro: Methodological and Design Considerations for Biophoton Imaging
- Biophoton Imaging Around and Between Plant Parts: Are "Auras" Real?
« Previous Article | Next Article »
OSA is a member of 