1. High resolution Fourier domain optical coherence tomography in the 2 um wavelength range using a broadband supercontinuum source

    High resolution Fourier domain optical coherence tomography in the 2 um wavelength range using a broadband supercontinuum source

    A 220 nm bandwidth supercontinuum source in the two-micron wavelength range has been developed for use in a Fourier domain optical coherence tomography (FDOCT) system. This long wavelength source serves to enhance probing depth in highly scattering material with low water content. We present results confirming improved penetration depth in high opacity paint samples while achieving the high axial resolution needed to resolve individual paint layers. This is the first FDOCT developed in the 2 μm wavelength regime that allows fast, efficient capturing of 3D image cubes at a high axial resolution of 13 μm in air (or 9 μm ...

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