J
J.B. Davies
Researcher at University College London
Publications - 52
Citations - 1800
J.B. Davies is an academic researcher from University College London. The author has contributed to research in topics: Finite element method & Waveguide (optics). The author has an hindex of 17, co-authored 52 publications receiving 1773 citations.
Papers
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Journal ArticleDOI
Finite-element solution of integrated optical waveguides
B. M. A. Rahman,J.B. Davies +1 more
TL;DR: In this paper, a vector H -field finite-element method has been used for the solution of optical waveguide problems, where the permittivity of the guiding structures can be an arbitrarily tensor, only limited to being lossless.
Journal ArticleDOI
Finite-Element Analysis of Optical and Microwave Waveguide Problems
B. M. A. Rahman,J.B. Davies +1 more
TL;DR: In this paper, a vector H-field formulation is developed for electromagnetic wave propagation for a wide range of guided-wave problems, which is capable of solving microwave or optical waveguide problems with arbitrarily anisotropic materials.
Journal ArticleDOI
Penalty Function Improvement of Waveguide Solution by Finite Elements
B. M. A. Rahman,J.B. Davies +1 more
TL;DR: In this article, a penalty function method was introduced to the finite element formulation, to reduce or eliminate spurious solutions, which also improved the quality of the physical field solutions, and was applied for the solution of metallic homogeneous and inhomogeneous guides, and integrated optics guides.
Journal ArticleDOI
Review of finite element methods for microwave and optical waveguides
TL;DR: In this article, the authors review the application of the finite element method to analysis of waveguide problems and discuss the significance of different variational formulations, the modeling of the infinite domain of open-boundary waveguides, techniques to avoid spurious solutions, and matrix solution techniques.
Journal ArticleDOI
Analysis of optical waveguide discontinuities
B. M. A. Rahman,J.B. Davies +1 more
TL;DR: In this article, a vector-H-field-finite-element method is proposed for optical waveguide problems, including arbitrary shape, arbitrary index distribution, and anisotropic materials.