A method and system for detecting a diamond signature

摘要

#$%^&*AU2019236717A120191017.pdf#####Abstract An apparatus comprising means for illuminating a material with a multiwavelength beam comprising at least one monochromatic SWIR laser beam, and at least one IR scatter-/anti-scatter laser beam; means for capturing a portion of said at least one monochromatic SWIR laser beam after said monochromatic SWIR laser beam has been reflected and/or scattered by the material; means for producing a SWIR signal based on the captured portion of said at least one monochromatic SWIR laser beam; means for capturing a first portion of said at least one IR scatter-/anti-scatter laser beam after said at least one IR scatter-/anti-scatter laser beam has been scattered and optionally reflected by the material, means for separating and thereafter capturing a reflected portion of said at least one IR scatter-/anti-scatter laser beam after said at least one IR scatter-/anti-scatter laser beam has been reflected by the material from a portion of said at least one IR scatter-/anti-scatter laser beam after said at least one IR scatter-/anti-scatter laser beam has been scattered by the material; means for producing an IR scatter signal based on said captured first portion of said at least one IR scatter-/anti-scatter laser beam; means for producing an IR reflection signal based on said captured reflected portion of said at least one IR scatter-anti-scatter laser beam; and means for classifying the material as comprising diamond based on the presence of a diamond signature in the combination of the SWIR signal, the IR reflection signal and the IR scatter signal.