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| 非磁性界面光波磁场量的菲涅耳公式 |
| On the Fresnel formula of light magnetic field through non-magnetic interface |
| 投稿时间：2012-12-14 |
| DOI：10.3969/j.issn.1005-5630.2013.06.013 |
| 中文关键词: 菲涅耳公式 π位相跃变 布儒斯特现象 |
| 英文关键词:Fresnel formula π phase jump Brewster phenomenon |
| 基金项目:湖北省教育厅教学研究基金资助项目（2008081） |
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| 中文摘要: |
| 为分析光波入射到非磁性光学界面时磁场量H的变化，根据电场量E、H、波矢k之间的关系推导了光波在非磁性光学界面上磁场量H的s分量的反射系数rHs、透射系数tHs和p分量的反射系数rHp和透射系数tHp的表达式，即得出非磁性光学界面上磁场量H的菲涅耳公式。这些公式等价于非磁性光学界面上电场量E的菲涅耳公式。rHs等于电场量E的p分量的反射系数rEp；而rHp等于电场量E的s分量的反射系数rEs。利用rHp和rHs解释了光波在非磁性光学界面上折射和反射时出现的π位相跃变效应和布儒斯特效应等重要现象。 |
| 英文摘要: |
| In order to investigate the change of light magnetic field H when the light was incident to the non-magnetic optical interface, according to the fact that light electrical field E, H and wave vector k act in accordance with the right-hand rule especially that E is perpendicular with H, utilizing the magnitude relation between E and H, combined with the boundary conditions of E and H that their tangential components on interface are continuous, the expressions of the reflection coefficients rHs, rHp and transmission coefficients tHs, tHp for s and p components of light magnetic field are respectively derived; namely the so-called Fresnel formula of light magnetic field through non-magnetic interface are obtained. Although these formula are equivalent with those for the light electrical field through non-magnetic interface, but only rHs is equal to the reflection coefficient rEp of the p component for the light electrical field and rHp is equal to the reflection coefficient rEs of the s component for the light electrical filed. Some important phenomena such as π phase jump effect and Brewster phenomenon could also be explained utilizing rHp and rHs. |
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