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There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
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Metz, France | Posted: January 17, 2017
Junliang Dong, Alexandre Locquet, and David S. Citrin from Georgia Tech-Lorraine/Georgia Tech, co-authored a paper that was recently published in Optics Express¹ (Optical Society of America Publishing). This paper, entitled, "Terahertz frequency-wavelet domain deconvolution for stratigraphic and subsurface investigation of art painting," illustrates how terahertz imaging can reveal hidden features in an art painting. Specifically, it is shown that THz possesses the unique ability for a non-ionizing radiation to reveal, at the same time, the roughness of the surface, underlying paint layers or brush strokes, and potential defects in the canvas/paperboard.