Some new uses for filtered fiber-optic Raman probes:: In situ drug identification and in situ and remote Raman imaging

The use of a commercially available filtered fiber-optic Raman probe is discussed for the in situ identification of illicit drugs. This probe is also shown to be useful for remote Raman measurements in a collimated beam geometry. Fiber-optic Raman imaging is discussed using single small-diameter image guides and also image guides with attached imaging GRIN lenses. Finally, a demonstration of remote Raman imaging is presented using a simple modification of the same commercially available Raman probe that was used for illicit drug measurements. Copyright (C) 1999 John Whey & Sons, Ltd.