Dual-laser CCD-Raman spectrometer applied to on-line measurement of paper coating paste

Pentti Niemela; Juha Sumen; Janne Suhonen

doi:10.1117/12.623477

3 June 2005 Dual-laser CCD-Raman spectrometer applied to on-line measurement of paper coating paste

Pentti Niemela, Juha Sumen, Janne Suhonen

Proceedings Volume 5826, Opto-Ireland 2005: Optical Sensing and Spectroscopy; (2005) https://doi.org/10.1117/12.623477
Event: OPTO-Ireland, 2005, Dublin, Ireland

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.

Citation Download Citation

Pentti Niemela, Juha Sumen, and Janne Suhonen "Dual-laser CCD-Raman spectrometer applied to on-line measurement of paper coating paste", Proc. SPIE 5826, Opto-Ireland 2005: Optical Sensing and Spectroscopy, (3 June 2005); https://doi.org/10.1117/12.623477

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