由消光定理求各向异性材料的布儒斯特角
Brewster's angle for anisotropic material from the extinction theorem
摘要：
利用消光定理，研究了电磁波在各向异性介质（包括超材料）内外反射时的布鲁斯特效应。给出了菲涅耳系数和布儒斯特角条件，并从分子光学的角度给出了微观解释。布鲁斯特角是各向异性材料中所有电偶极子和磁偶极子对反射场的贡献变为零的入射角。与各向同性介质不同，由于材料的各向异性，各向异性材料可以对TE和TM波表现出布鲁斯特角。
英文摘要：
By the extinction theorem we explore the Brewster effect in the external and internal reflections of electromagnetic wave associated with an anisotropic material that is both dielectric and magnetic, including metamaterials. We obtain Fresnel's coefficients and the condition of Brewster's angle, and give microscopic explanations from the view point of molecular optics. The Brewster angle is the incidence of angle at which the contribution of all electric and magnetic dipoles in the anisotropic material to the reflection field becomes zero. Distinct from isotropic media, the anisotropic material can exhibit Brewster angle for both TE and TM waves due to the anisotropy of the material.
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