Raman spectroscopy with an integrated arrayed-waveguide grating

N. Ismail, L.P. Choo-Smith, K. Wörhoff, A. Driessen, A.C. Baclig, P.J. Caspers, G.J. Puppels, R.M. de Ridder, M. Pollnau

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    Abstract

    An integrated arrayed-waveguide grating fabricated in silicon-oxynitride technology is applied to Raman spectroscopy. After its validation by reproducing the well-known spectrum of cyclohexane, polarized Raman spectra are measured of extracted human teeth containing localized initial carious lesions. Excellent agreement is obtained between the spectra of healthy and carious tooth enamel measured with our integrated device and spectra recorded using a conventional Raman spectrometer. Our results represent a step toward the realization of compact, hand-held, integrated spectrometers, e.g. for the detection of dental caries at an early stage.
    Original languageEnglish
    Pages (from-to)4629-4631
    Number of pages3
    JournalOptics letters
    Volume36
    Issue number23
    DOIs
    Publication statusPublished - Dec 2011

    Keywords

    • IOMS-PIT: PHOTONICS INTEGRATION TECHNOLOGY

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