Laser scripted encoding and decoding

摘要

A method of encoding information on a material substrate and a device including the modified material substrate are provided. The method includes providing a material substrate having at least one exposed surface or interior (bulk) location with an initial material state, treating the exposed surface or interior location with an energy source, wherein the energy source encodes encryption information on the exposed surface or interior location to provide a modified material substrate having an exposed surface or interior location with an intermediate material state, and then treating the exposed surface or interior location with an intermediate material state with the energy source to encode decipher information on the exposed surface or interior location to provide a remodified material substrate having an exposed surface or interior location with a final material state.