Abstract
We report a quasi-single-shot wide-field optical coherence tomography system that enables to measure the reflection, phase and en-face OCT images from the same setup using the glass jig. The jig consisting of a wedge glass substrate and a glue dot is contacted to the tissue surfaces, and the data within glue dot is used to reduce the phase noise of the interference signal. The reconstructed image size of the object was 4.0 mm × 4.3 mm. The standard deviation (STD) of the phase variation was minimized by 54 % and obtained to be 0.027 rad for the poke tissue. The corresponding STD in optical path length change was measured to be 1.4 nm. The refractive index of the water and poke tissue at the surface is also evaluated as 1.36 and 1.39, respectively, using reflection intensity images. Further, the en-face sectional images of the tissue sample are also measured.
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This work is supported by the grant-in-aid for Japan Society for the Promotion of Science Fellows JSPS KAKENHI Grant Number 2503044.
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Anna, T., Kimura, S., Mehta, D.S. et al. Reflection, phase and en-face sectional imaging of scattering objects using quasi-single-shot wide-field optical coherence tomography. Opt Rev 22, 706–716 (2015). https://doi.org/10.1007/s10043-015-0124-3
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DOI: https://doi.org/10.1007/s10043-015-0124-3