Raman spectroscopy with an integrated arrayed-waveguide grating

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TypeArticle
Journal titleOptics Letters
ISSN0146-9592
Volume36
Issue23
Pages46294631; # of pages: 3
SubjectDental caries; Handhelds; Human teeths; Integrated device; Integrated spectrometers; Polarized Raman spectra; Raman spectrometers; Siliconoxynitride; Arrayed waveguide gratings; Integration; Nitrides; Raman scattering; Raman spectroscopy; Spectrometers; Spectrometry; Tooth enamel; Waveguides
AbstractAn integrated arrayed-waveguide grating fabricated in silicon-oxynitride technology is applied to Raman spectro-scopy. 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, handheld, integrated spectrometers, e.g. for the detection of dental caries at an early stage. © 2011 Optical Society of America.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Biodiagnostics (IBD-IBD)
Peer reviewedYes
NPARC number21271236
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Record identifier5287b723-6ac7-4495-ade4-c915b5d52fa5
Record created2014-03-24
Record modified2016-05-09
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