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Publication numberWO2002075242 A3
Publication typeApplication
Application numberPCT/US2002/002065
Publication date21 Nov 2002
Filing date22 Jan 2002
Priority date22 Jan 2001
Also published asEP1358443A2, US7826059, US20020196446, US20110109914, WO2002075242A2, WO2002075242B1
Publication numberPCT/2002/2065, PCT/US/2/002065, PCT/US/2/02065, PCT/US/2002/002065, PCT/US/2002/02065, PCT/US2/002065, PCT/US2/02065, PCT/US2002/002065, PCT/US2002/02065, PCT/US2002002065, PCT/US200202065, PCT/US2002065, PCT/US202065, WO 02075242 A3, WO 02075242A3, WO 2002/075242 A3, WO 2002075242 A3, WO 2002075242A3, WO-A3-02075242, WO-A3-2002075242, WO02075242 A3, WO02075242A3, WO2002/075242A3, WO2002075242 A3, WO2002075242A3
InventorsJonathan E Roth, Joseph A Izatt, Andrew M Rollins
ApplicantJonathan E Roth, Joseph A Izatt, Andrew M Rollins
Export CitationBiBTeX, EndNote, RefMan
External Links: Patentscope, Espacenet
Method and apparatus for polarization-sensitive optical coherence tomography
WO 2002075242 A3
Abstract
A method and apparatus for extracting the vector optical properties of biological samples with micron-scale resolution in three dimensions, using polarization-sensitive optical coherence tomography (PS-OCT). The method measures net retardance, net fast axis, and reflexivity. Polarization sensing is accomplished by illuminating the sample with at least three separate polarization states, using consecutive acquisitions of the same pixel, A-scan, or B-scan. The method can be implemented using non-polarization-maintaining fiber and a single detector. This PS-OCT method reported measures fast axis explicitly. In a calibration test of the system, net retardance was measured with an average error of 7.5 (standard deviation 2.2) over the retardance range 0 to 180, and fast axis with average error of 4.8 over the range 0 to 180.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
WO2000069333A1 *19 May 200023 Nov 2000The Regents Of The University Of CaliforniaOptical detection of dental disease using polarized light
Non-Patent Citations
Reference
1 *BOER DE J F ET AL: "POLARIZATION EFFECTS IN OPTICAL COHERENCE TOMOGRAPHY OF VARIOUS BIOLOGICAL TISSUES", IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, IEEE SERVICE CENTER, US, vol. 5, no. 4, July 1999 (1999-07-01), pages 1200 - 1203, XP000893469, ISSN: 1077-260X
2 *EVERETT M J ET AL: "Non-invasive diagnosis of early caries with polarization sensitive optical coherence tomography (PS-OCT)", PROCEEDINGS OF THE SPIE, SPIE, BELLINGHAM, VA, US, vol. 3593, 24 January 1999 (1999-01-24), pages 177 - 182, XP000931184
Classifications
International ClassificationG01B9/04, A61B5/00, G01B9/02, G01N21/47
Cooperative ClassificationY10T29/49716, G01B9/04, G01B9/02091, A61B5/0066, G01B2290/70, A61B5/0073, G01N21/4795, G01B9/02011, G01B9/02072
European ClassificationA61B5/00P1C, G01B9/02, G01B9/04, G01N21/47S, A61B5/00P6
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