Open AccessSingle-shot phase-stepped wide-field coherence-gated imaging
Author(s) -
Christopher Dunsby,
Y. J. Gu,
Paul M. W. French
Publication year - 2003
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.11.000105
Subject(s) - optics , coherence (philosophical gambling strategy) , single shot , phase imaging , optical coherence tomography , phase (matter) , ghost imaging , physics , microscopy , quantum mechanics
We present a single-shot wide-field CCD based coherence-gated imaging technique that utilizes spatially separated phase-stepped images and requires only one CCD camera to achieve simultaneous acquisition of four phase-stepped images. This technique provides a relatively low cost system for depth-resolved imaging of dynamic samples. We demonstrate real-time coherence-gated imaging of a moving watch cog, 3D reconstructions of a coin, phase measurements of the surface of a test-chart and depth-resolved imaging in a weakly scattering sample of onion.