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Calibration of the Raman shift scale of a compact spectrometer with a charge-coupled device (CCD) array detector is examined. Argon and neon line spectra are used as wavelength standards, and a shift standard
is used to track changes in the wavelength of the doubled Nd:YAG laser line. A method is described to introduce controlled shifts of spectra relative to the detector elements. Excellent precision, on the
order of 0.05 cm-1, is achieved in measuring Raman shift values over a period of several weeks. The abscissa accuracy, examined with the use of both Raman lines of known shift and atomic line
wavelengths, is considerably poorer than the precision. The likely origins of this discrepancy are discussed.
The Society publishes the internationally recognized, peer reviewed journal, Applied Spectroscopy, which is available both in print and online. Subscriptions are included with membership or can be purchased by institutional or corporate organizations. Abstracts may be viewed free of charge. Previously published as Bulletin (Society for Applied Spectroscopy)