Metal sulfide coatings for hollow glass waveguides

Veena Gopal, James A. Harrington

Research output: Contribution to journalConference articlepeer-review

7 Scopus citations


Metal sulfide dielectric thin films have been deposited using dynamic wet chemistry processing on silver coated hollow glass waveguides (HGWs). Metal sulfides like cadmium sulfide (CdS) and lead sulfide (PbS) possess excellent optical properties in the IR and have high refractive index contrast. A linear growth regime with deposition time has been observed for CdS and PbS thin films on Ag inside silica hollow glass waveguides. The thickness of these thin films can be tailored to minimize the attenuation of the HGW at the operating wavelength. We have made single dielectric metal coated HGWs using CdS and PbS. This paper discusses the processing and characterization of the thin films and the resulting dielectric metal coated hollow glass waveguides.

Original languageEnglish (US)
Pages (from-to)97-103
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2003
EventPROGRESS IN BIOMEDICAL OPTICS AND IMAGING: Optical Fibers and Sensors for Medical Applications III - San Jose, CA, United States
Duration: Jan 25 2003Jan 28 2003

All Science Journal Classification (ASJC) codes

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


  • Cadmium sulfide
  • Hollow glass waveguides
  • Infrared fiber optics
  • Lead sulfide
  • Metal sulfide thin film
  • Wet chemistry processing


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