Thermal imaging through infrared fiber/waveguides bundles

Israel Gannot*, Alon Goren, Eran Rave, Abraham Katzir, Veena Gopal, Gregory Revezin, James A. Harrington

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

8 Scopus citations


Trans-endoscopic Infrared Imaging (IRI) relates the possibility to conduct IRI diagnosis of internal body surfaces under minimal invasiveness. It may also be utilized to control and to optimize the thermal interactions and the potential side effects during Minimally Invasive Surgeries (MIS). However, transferring the thermal images transendoscopically requires the usage of IR imaging bundles, which are neither yet mature nor commercially available. In our setup we have used two basic types of recently-developed imaging bundles: Ag/AgI-coated Hollow Glass Waveguide (HGW) bundles and Silver Halide (AgClBr) core-clad fiber bundles. The optical setup system was consisted of IR optics (e.g. ZnSe lenses, reflective objectives) and a thermal IR camera. We have succeeded to image objects through the bundles, such as various shapes of electrically heated wires, ex-vivo biological phantoms (samples of porcine stomach) and in-vivo phantom models (mice) irradiated by CO2 laser. Measurements were conducted for both - static and dynamic object states.

Original languageEnglish
Pages (from-to)94-100
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2004
EventProgress in Biomedical Optics and Imaging - Optical Fibers and Sensors for Medical Applications IV - San Jose, CA, United States
Duration: 24 Jan 200425 Jan 2004


  • Flexible hollow waveguides
  • IR imaging
  • Minimal invasive surgery
  • Silver halide fibers


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