A research for plasma electromagnetic character using JEC-CN-FDTD algorithm based on ICCG method
| Autor: | Guang-Bin Wang, Hong Wei Yang, Da-Jie Song |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Physics Mathematical analysis 020206 networking & telecommunications 02 engineering and technology 01 natural sciences Electromagnetic radiation Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Convolution Conjugate gradient method 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Reflection (physics) Transmission coefficient Electrical and Electronic Engineering Reflection coefficient Sparse matrix Cholesky decomposition |
| Zdroj: | Optik. 127:1121-1125 |
| ISSN: | 0030-4026 |
| DOI: | 10.1016/j.ijleo.2015.10.139 |
| Popis: | For the first time, the current density convolution finite-difference time-domain (JEC-FDTD) method is extended to dispersive media using Crank–Nicolson difference scheme, and derive the one-dimensional JEC-CN-FDTD iterative equation of plasma. The incomplete Cholesky conjugate gradient (ICCG) is proposed to solve the large sparse matrix equation in the Crank–Nicolson finite-difference time-domain (CN-FDTD) method as the ICCG method improves speed of convergence, enhances stability and reduces memory consumption. The high accuracy and efficiency of the JEC-CN-FDTD method are confirmed by computing the characteristic parameters of electromagnetic wave through a collision plasma slab in one dimension, such as the reflection electric field, transmission electric field, magnitudes and phases of reflection coefficient and transmission coefficient. The results prove that the method performs stably, is of accuracy, and has certain advantages. |
| Databáze: | OpenAIRE |
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