High-resolution 3D imaging of polymerized photonic crystals by lab-based x-ray nanotomography with 50-nm resolution
2010
High resolution x-ray computed tomography is a powerful non-destructive 3-D imaging method. It can offer superior
resolution on objects that are opaque or low contrast for optical microscopy. Synchrotron based x-ray computed
tomography systems have been available for scientific research, but remain difficult to access for broader users. This
work introduces a lab-based high-resolution x-ray nanotomography system with 50nm resolution in absorption and
Zernike phase contrast modes. Using this system, we have demonstrated high quality 3-D images of polymerized
photonic crystals which have been analyzed for band gap structures. The isotropic volumetric data shows excellent
consistency with other characterization results.
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