Raman spectroscopy with an integrated arrayed-waveguide grating

N Ismail, LP Choo-Smith, K Worhoff, A Driessen, Alvin Baclig, Peter Caspers, Gerwin Puppels, RM de Ridder, M Pollnau

Research output: Contribution to journalArticleAcademicpeer-review

51 Citations (Scopus)


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, handheld, integrated spectrometers, e. g. for the detection of dental caries at an early stage. (C) 2011 Optical Society of America
Original languageUndefined/Unknown
Pages (from-to)4629-4631
Number of pages3
JournalOptics Letters
Issue number23
Publication statusPublished - 2011

Research programs

  • EMC MM-03-61-05-A

Cite this