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Inorganic Optical Taggant and Method of Making

The subject invention disclosed herein comprises ceramic microbeads, preferably alumina, zirconia, zirconium phosphate, or yttrium aluminum garnet (YAG), doped with one or more optically active species. The beads of the present invention may be added to substances such as explosives in order to create a distinctive optical signature that identifies a manufacturer, lot number, etc. in the event of the need for forensic analysis. The beads of the subject invention could also be formulated into paints if needed to create distinctive optical signatures for camouflage, decoys, or other countermeasures and could also be applied as a dust to track the movement of personnel, vehicles, etc.

Environmental Sciences Division
Oak Ridge National Laboratory
Oak Ridge National Laboratory
Phone: (865) 576-4680
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