Hollow core waveguides for radiation delivery and sensing: Monte carlo, ray tracing computer simulation

I. Steinberg, E. Kaplan, M. Ben David, I. Gannot

Research output: Contribution to journalConference article

Abstract

The use hollow core waveguides (HCW's) in biomedicine includes two different tasks: Power delivery in order to facilitate clinical procedures and measurement of beam parameters in order to sense the surrounding tissue and create a diagnosis. To study the interaction between light and waveguide a computer simulation of ray propagation inside a HCW was developed. The simulation is based on the statistical method of Monte Carlo repeated trials and of ray tracing optics. The simulation accounts for both meridional and skew rays, rough fiber surface, Imperfect reflection, arbitrary fiber geometry and the insertion of absorbing molecular clusters inside the fiber lumen for sensing purposes. Here we test skew rays. At first the effect of skewness on the number of wall hits and the optical distance is investigated. Then different beam profiles are tested to fulfill different tasks: Sensing and power delivery. The role of skew rays in each scenario is discussed.

Original languageEnglish (US)
Article number71730O
JournalProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume7173
DOIs
StatePublished - May 5 2009
Externally publishedYes
EventOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications IX - San Jose, CA, United States
Duration: Jan 24 2009Jan 25 2009

Keywords

  • Aerosol sensing
  • Hollow core waveguides
  • Monte Carlo
  • Skew rays

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Atomic and Molecular Physics, and Optics
  • Radiology Nuclear Medicine and imaging

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