Characteristics analysis of metal-clad and absorptive dielectric waveguides by a simple and accurate perturbation method
| Autor: | Shou Xian She |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
Physics
Transcendental equation Wave propagation business.industry Numerical analysis Mathematical analysis Physics::Optics Dielectric Electromagnetic radiation Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Optics Simple (abstract algebra) Numerical differentiation Electrical and Electronic Engineering business Eigenvalues and eigenvectors |
| Zdroj: | Optical and Quantum Electronics. 23:1045-1054 |
| ISSN: | 1572-817X 0306-8919 |
| DOI: | 10.1007/bf00611441 |
| Popis: | We present a simple and accurate method for characteristic analysis of metal-clad dielectric waveguides and absorptive waveguides. The real partN′ of the complex modal indexN=N′ + iN″ is obtained by solving the corresponding real eigenvalue equation, and the imaginary partN″ is given by (∂n′/∂e′)e″, wheree=e′ + ie″ is the complex dielectric constant of the absorptive layer, and ∂N′/∂e′ is obtained by numerical differentiation. The method is straightforward, and the cumbersome solution of complex transcendental equations is completely eliminated. Results for simple structures are in good agreement with those obtained by exact analysis. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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