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The Optical Society (OSA)

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The Optical Society (OSA)

Computer Hardware & Peripherals, Services

Printing Technique developed to print hidden images.

December 10, 2016

Printing three types of QR codes, each 72 by 72 pixels, new technique developed by research team uses silver and carbon ink to print images consisting of rods that are about millimeter long and couple of hundred microns wide. Visually telling difference between different conductivities, technique allows printing of different shapes that form type of metamaterial – synthetic materials.

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