Spectral measurements with the GL Gem Raman are usually done using a focused beam on the table facet of the gemstone (unless otherwise noted); in some cases laser intensity had to be adjusted to avoid “overwhelming” of the Raman signal (detector saturation) caused by sample fluorescence. Measurements were obtained with or without TEC as indicated.
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Vancouver, B.C. – December 1, 2011, October 20, 2012, February 21, 2013
Wolf Kuehn, B.A., M.A., Dipl.oec, F.G.A., F.G.G. – GLR&T Project Manager
© 2011 Gemlab Research & Technology, Vancouver, Canada – www.gemlab.ws
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