Raman spectroscopy of human teeth using integrated optical spectrometers


Ismail, N. and Choo-Smith, L.-P. and Wörhoff, K. and Driessen, A. and Baclig, A.C. and Caspers, P.J. and Puppels, G.J. and Ridder, R.M. de and Pollnau, M. (2011) Raman spectroscopy of human teeth using integrated optical spectrometers. In: Annual Symposium of the IEEE Photonics Benelux Chapter 2011, 1-2 December 2011, Ghent, Belgium (pp. pp. 65-68).

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Abstract:We have designed an arrayed-waveguide grating in silicon oxynitride technology for the detection of Raman signals from tooth enamel in the spectral region between 890 nm and 912 nm. The detected signals for both parallel and cross polarizations are used to distinguish between healthy and carious regions on the tooth surface of extracted human teeth. Our experimental results are in very good agreement with those achieved using conventional Raman spectrometers. Our results represent a step toward the realization of compact, hand-held, integrated spectrometers.
Item Type:Conference or Workshop Item
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/79371
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