We present a proof-of-concept experiment utilizing a novel “snap-shot” spectral domain OCT technique that captures a
phase coherent volume in a single frame. The sample is illuminated with a collimated beam of 75 μm diameter and the
back-reflected light is analyzed by a 2-D matrix of spectral interferograms. A key challenge that is addressed is
simultaneously maintaining lateral and spectral phase coherence over the imaged volume in the presence of sample
motion. Digital focusing is demonstrated for 5.0 μm lateral resolution over an 800 μm axial range.
Trevor Anderson, Armin Segref, Grant Frisken, Herman Ferra, Dirk Lorenser, and Steven Frisken, "3D-spectral domain computational imaging," Proc. SPIE 9697, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XX, 96970Z (Presented at SPIE BiOS: February 16, 2016; Published: 8 March 2016); https://doi.org/10.1117/12.2214801.
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