Planar chirowaveguide with discontinuities
| Autor: | Dwight L. Jaggard, Xinzhang Wu |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Physics
Multi-mode optical fiber business.industry Scattering Continuous spectrum Mathematical analysis Classification of discontinuities Condensed Matter Physics Atomic and Molecular Physics and Optics Finite element method Electronic Optical and Magnetic Materials Discontinuity (linguistics) Optics Planar Electrical and Electronic Engineering business Eigenvalues and eigenvectors |
| Zdroj: | Microwave and Optical Technology Letters. 14:280-284 |
| ISSN: | 1098-2760 0895-2477 |
| DOI: | 10.1002/(sici)1098-2760(19970405)14:5<280::aid-mop8>3.0.co;2-9 |
| Popis: | We propose and develop an exact and efficient approach to analyze the effect of discontinuities on guided waves for open planar chirowaveguides. We use a technique that combines a one-dimensional finite-element method for the eigenvalue problem in the transverse direction with a rigorous mode-matching procedure for the discontinuities in the longitudinal direction. Both the scattering of discrete spectra surface-wave modes and the continuous spectra radiation and evanescent modes are discussed in this article. Equivalent transmission-line networks are introduced in the longitudinal direction so that multimode network theory can be used to simplify the analysis. Features such as symmetrical properties of the structure are also discussed. Based on the analysis, we investigate mode conversion and radiation characteristics and propose a mode converter whose converted power is over 90% for moderate values of the chirality parameter. © 1997 John Wiley & Sons, Inc. Microwave Opt Technol Lett 14:280-284, 1997. |
| Databáze: | OpenAIRE |
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