Optical Coherence Tomography has been successfully applied to the non-invasive imaging of subsurface microstructure
of a variety of materials from biological tissues to painted objects of art. One of the limitations of the technique is the
low depth of penetration due to the strong scattering and absorption in the material. Previous studies found that for paint
materials, the optimum window for large depth of penetration is around 2.2 microns. This is also true for many other
materials with low water content. We have previously demonstrated OCT systems in this wavelength regime for imaging
with improved depth of penetration. In this paper, we present an improved 2 micron high resolution Fourier domain OCT
system using a broadband supercontinuum source. The system achieved a depth resolution of 9 microns in air (or 6
microns in paint or any polymer).
Conference Committee Involvement (1)
Solid State Lasers XXIV: Technology and Devices
8 February 2015 | San Francisco, California, United States
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