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Nanostructured optical waveguide films of TiO 2 and WO 3−x for photonic gas sensors

Thin Solid Films, ISSN: 0040-6090, Vol: 518, Issue: 16, Page: 4597-4602
2010
  • 7
    Citations
  • 0
    Usage
  • 12
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    7
    • Citation Indexes
      7
  • Captures
    12

Article Description

Pulsed laser deposition technique was used to fabricate successfully nanostructured optical waveguide films of TiO 2 and WO 3 − x for gas-sensing applications. High-quality mode spectra, consisting of well-defined bright mode lines were observed in the samples with smooth surface. Films' structural, morphological and optical properties as well as the chemical composition were investigated by using x-ray diffraction, scanning electron and atomic force microscopy, UV–VIS–NIR, m -line and x-ray photoelectron spectroscopy, respectively. Gas sensitivity was investigated at room temperature using m-line spectroscopy technique on basis of reversible variations of the refractive index of the samples under gas exposure. Testing scheme recording the bright m -line shift as optical response was proposed.

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