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Proceedings Paper

Dual-laser CCD-Raman spectrometer applied to on-line measurement of paper coating paste
Author(s): Pentti Niemela; Juha Sumen; Janne Suhonen
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Paper Abstract

A dual-laser Raman spectrometer was developed, in which the two lasers image two different parts of the spectrum alternately on the same spectrograph. This solves the resolution/bandwidth trade-off problem of CCD Raman spectrometers, previously solved with a dual-grating technique. The dual-laser technique has, however, an additional advantage of alleviating the contradiction between sample fluorescence and detector response, which is illustrated here by applying the technique to the measurement of paper coating paste.

Paper Details

Date Published: 3 June 2005
PDF: 6 pages
Proc. SPIE 5826, Opto-Ireland 2005: Optical Sensing and Spectroscopy, (3 June 2005); doi: 10.1117/12.623477
Show Author Affiliations
Pentti Niemela, VTT Electronics (Finland)
Juha Sumen, VTT Electronics (Finland)
Janne Suhonen, VTT Electronics (Finland)


Published in SPIE Proceedings Vol. 5826:
Opto-Ireland 2005: Optical Sensing and Spectroscopy
Gerard D. O'Sullivan; Brian D. MacCraith; Hugh James Byrne; Enda McGlynn; Alan G. Ryder, Editor(s)

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