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Proceedings Paper

Real-time single-shot full-field OCT based on dual-channel phase-stepper optics and 2D quaternionic analytic signal processing
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Paper Abstract

We describe a novel compact real-time single-shot full-field optical coherence tomography based on a dual-channel phase-stepper optics, which employs a 2-D quaternionic analytic signal processing technique to reconstruct the en-face OCT image. The experimental setup was based on a Linnik type polarization Michelson interferometer followed by a dual-channel phase-stepper optics and a single CCD camera to capture two 180° phase stepped images simultaneously. The interferometer is illuminated using a SLD source with central wavelength of 842 nm and spectral bandwidth of 16.2 nm, yielding an axial resolution of 19.8 μm. Using a 10 X (0.25-NA) microscope objective and a single CCD camera, the system covers an area of 325μm x 300μm (325 × 300 pixels) with a transverse resolution of 4.4 μm. We demonstrate the feasibility of this system for real-time imaging of scattering specimens such as a diaptomus.

Paper Details

Date Published: 20 February 2009
PDF: 9 pages
Proc. SPIE 7168, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIII, 71681H (20 February 2009); doi: 10.1117/12.807838
Show Author Affiliations
Molly Subhash Hrebesh, Yamagata Univ. (Japan)
Manabu Sato, Yamagata Univ. (Japan)


Published in SPIE Proceedings Vol. 7168:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIII
James G. Fujimoto; Joseph A. Izatt; Valery V. Tuchin, Editor(s)

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