Abstract
The authors determine that the sensitivity of a D-fiber methane gas sensor can be improved by overcoating the flat surface of the fiber with a high index layer. Using the finite difference/perturbation theory technique, the enhancement factor over uncoated D-fiber is computed. The results compare favorably with those obtained from analytical expressions and the matrix method for a planar waveguide structure which models the overcoated D-fiber. From theoretical results it is concluded that the sensitivity can realistically be improved by an order of magnitude over an uncoated fiber.
| Original language | English |
|---|---|
| Pages (from-to) | 115-118 |
| Number of pages | 4 |
| Journal | Power Engineering Journal |
| Volume | 7 |
| Issue number | 3 |
| Publication status | Published - Jun 1993 |
ASJC Scopus subject areas
- Fuel Technology
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering