Dielectric coatings for Ag/dielectric hollow glass waveguides

Veena Gopal, James A. Harrington

Research output: Contribution to journalConference articlepeer-review

6 Scopus citations


Different dielectric thin films are being studied in order to facilitate the processing of low loss multiple metallic dielectric hollow glass waveguides (HGWs). In this paper, we present our results for high index lead sulfide (PbS) and low index optical polymers, especially, polystyrene (PS) and cyclic olefin polymer (COP). We have observed that the morphology of the thin film is dependent on the processing conditions. The morphology of the metal and dielectric thin film affects the attenuation of the hollow glass waveguides. We have been successful in depositing and controlling the morphology of 'high n' PbS thin films and 'low n' polymer films. In order to aid in thin film characterization we have also deposited on planar substrates.

Original languageEnglish (US)
Pages (from-to)143-151
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2002
EventOptical Fibers and Sensors for Medical Applications II - San Jose, CA, United States
Duration: Jan 22 2002Jan 23 2002

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


  • Cyclic olefin polymer (COP)
  • Index contrast
  • Interference
  • Lead sulfide (PbS)
  • Morphology
  • Polystyrene (PS)
  • Roughness
  • Silver (Ag)
  • Solvent evaporation
  • Thickness


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