Research Papers: Imaging

Polarization memory effect in optical coherence tomography and dental imaging application

[+] Author Affiliations
Yueli Chen

Agiltron Incorporated, 15 Cabot Road, Woburn, Massachusetts 01801

University of Connecticut, Department of Electrical and Computer Engineering, 371 Fairfield Road, Storrs, Connecticut 06269

Linda Otis

University of Maryland, Dental School, 650 West Baltimore Street, Baltimore, Maryland 21201

Quing Zhu

University of Connecticut, Department of Electrical and Computer Engineering, 371 Fairfield Road, Storrs, Connecticut 06269

J. Biomed. Opt. 16(8), 086005 (August 01, 2011). doi:10.1117/1.3606573
History: Received October 06, 2010; Revised May 25, 2011; Accepted June 10, 2011; Published August 01, 2011; Online August 01, 2011
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We report the existence of polarization memory effect (PME) in optical coherence tomography and investigate its potential applications in dental imaging. We performed the study in three steps. First, microsphere scattering phantoms of different sizes were imaged in order to validate experimental results with PME theory. Both linearly and circularly polarized light were used to probe the samples. Second, healthy tooth samples were scanned and polarization memory effect was identified in dentin. In this step, specific verification and signal processing were performed to rule out possible image interpretation by birefringence effect. Third, we evaluated dentin demineralization with PME. Results show polarization memory can be useful to characterize this dynamic mineralization process for early caries detection and rehabilitation.

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© 2011 Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation

Yueli Chen ; Linda Otis and Quing Zhu
"Polarization memory effect in optical coherence tomography and dental imaging application", J. Biomed. Opt. 16(8), 086005 (August 01, 2011). ; http://dx.doi.org/10.1117/1.3606573


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