Instrumentation

Hand-Held Laser Induced Breakdown Spectroscopy (LIBS)

               SciAps Z903 and older SciAps Z300. We use these extensively for timber analyses with the US Forest Service project. But there are many other cool applications. We have used LIBS to determine the provenance of illicit drugs. We are slowly collecting large datasets for colored glass and antacid tablets.

Hand-Held X-Ray Fluorescence

               SciAps X200. Like our LIBS, this is a cool little box! We haven’t found the right application yet to have it shine.

Excitation-Emission Matrix (EEM) Fluorometer

               Horiba ATEEM Excitation Emission Matrix Fluorometer.  Using EEM Fluorescence in a collaboration with Merck for ‘soft sensing’ of pharmaceutical manufacturing processes. In particular looking at the formation of virus like particles in E. coli for making vaccines. Also looking at EEM for identification of timber – exotic hardwoods fluoresce!  Earlier in my career, we used EEM for water quality analyses – detecting PAHs and pesticides.

Raman microscope

               Horiba LabRAM HR Evolution Raman Microscope. Three lasers (532, 633, and 785nm excitation) and filters for ultra low frequency (ULF) Raman scattering. Raman imaging is information rich and fun to analyze. We are interested in ways to use data science to guide the optimal collection of a Raman image.

Hand-held Raman

We have a miniature Raman system consisting of an OceanOptics spectrograph and an InPhontonics fiber optic probe. This is great for in-situ measurements in a PAT/PAC environment.

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