Raman optical identification tag

摘要

A method for tagging and identifying a composition using Raman spectroscopy is disclosed, the method comprising tagging the composition by disbursing additional individual tag molecules throughout a base material thereof so as to create a tagged material having a spectral profile with a specific Raman optical signature encoded therein, wherein the specific Raman optical signature of the tagged material is distinct from the native Raman optical signature of the base material; and identifying the composition by reading a spectral response of the tagged material with a Raman spectroscopic technique so as to identify the composition based on the specific Raman optical signature encoded in the tagged material rather than the native Raman optical signature encoded in the base material.