摘要
建立两种VTI介质组成的界面模型,在大于入射临界角的情况下引入坡印廷矢量,分析计算得到非均匀椭圆极化折射P-波的极化系数的两组解。根据能量平衡原理,通过分析坡印廷矢量的z分量,证明在过入射临界角的范围内对应折射P-波存在一个异常入射角。
An interface model composed of two kinds of VTI medium is established in this paper.When the incident angle greater than the critical incident-angle,two sets of polarization coefficient solutions for the inhomogeneous elliptical-polarization refraction P-wave are derived through the Poynting vector.According to the principle of energy balance,the reasonability of anomalous incident-angle existence for the refraction P-wave is verified through the analysis of the z-component of the Poynting vector.This anomalous incident-angle is located in the range of post-critical incident-angle.
出处
《西安邮电大学学报》
2017年第1期69-72,77,共5页
Journal of Xi’an University of Posts and Telecommunications
基金
国家自然科学基金资助项目(40974078)
关键词
各向异性
极化系数
能量平衡原理
异常入射角
anisotropy
polarization coefficient
the principle of energy balance
anomalous incident-angle
