Intelligent Material Solutions, Covert Tagging and Serialization Systems
Abstract:We propose an innovative covert tagging system based on five specific and unique rare earth crystalline compositions capable of converting wavelengths of light up or down the electromagnetic spectrum. By incorporating precise ratios of rare earth ions in unique host lattices and synthesizing them under exact conditions we can achieve excellent control and tunability of their optical properties through highly complex energy transfer mechanisms. The optical emissions of the upconverting rare earth crystals can be tuned for various parameters such as lifetime, emission spectra, and relative ratio between a phosphor with multiple emission peaks spectra. Additionally, a handheld detection platform will be developed that will be capable of identifying all of the unique optical signatures within a single composition and also differentiate from other compositions. The detection platform will provide a cost-effective and secure platform for identification of the various covert markers.
Document Type: Research Article
Publication date: January 1, 2013
For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.
Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.
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