Portable Raman Spectrometer with Fluorescence Reduction Capability

Applications

1. Characterization of highly fluorescent minerals

Sample fluorescence can often overwhelm the Raman signal of a material and is one of the main limitations of the technique.  The examples below show how Bravo’s fluorescence reduction technology can result in successful measurement of Raman spectra where benchtop instruments fail.

2. Applications to Art Objects

As a rapid, non-destructive technique which requires no sample preparation,  Raman spectroscopy is especially useful for studying art objects, cultural artifacts, and gemstones. In collaboration with Bart Devolder, conservator, Princeton University Art Museum,  we have explored the use of Raman spectroscopy to identify pigments used in paintings in the Princeton Collection.

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Comparison of Bravo portable spectrometer with our Benchtop Horiba LabRam