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物理学报. 2006, 55(7): 3464-3469.
doi: 10.7498/aps.55.3464.
等离子体的SO-FDTD算法和对电磁波反射系数的计算分析
- 收稿日期: 2005-10-28
- 修回日期: 2005-12-12
- 刊出日期: 2006-07-20
English Abstract
SO-FDTD method and its application to the calculation of electromagnetic wave reflection coefficients of plasma
- Received Date:
28 October 2005
- Accepted Date:
12 December 2005
- Published Online:
20 July 2006
Abstract: The dielectric property of dispersive media is written as rational polynomial function, the relation between D and E is derived in time domain. It is named shift operator FDTD (SO-FDTD) method. The high accuracy and efficiency of this method is confirmed by computing the reflection coefficients of electromagnetic waves by a collisional plasma slab. The reflection coefficients between plasma and the atmosphere or vacuum can be calculated by using the SO-FDTD method.The result is that the reflection coefficients are affected by plasma thickness, electron numerical density, the distributing orderliness of electron density, and incidence wave frequency.
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Keywords:
- plasma /
- electromagnetic wave /
- FDTD method
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