平面周期性层状手征虚结构对反射和透射功率的影响
Effects of Planar Periodic Stratified Chiral Nihility Structures on Reflected and Transmitted Powers
摘要：
用传递矩阵法研究了平面多层周期结构在平面波激励下的行为。采用多层结构，周期为2。也就是说，偶数和奇数位置的层会重复。奇数位置处的层是手性虚无超材料，而考虑偶数位置处的层的三种不同情况，即，介电、手征和手征虚无。在太赫兹波段，研究了旋光性引起的偏振旋转效应随入射角和频率的变化。手征无光结构在垂直入射时具有透明性，而在斜入射时，手征无光-手征无光结构具有完全排斥性。
英文摘要：
Behavior of planar multilayer periodic structures due to plane wave excitation has been studied using the transfer matrix method. Multilayer structure is taken with periodicity two. That is, layers at even and odd locations repeat themselves. Layers at odd locations are of chiral nihility metamaterial whereas three different cases for layers at even locations are considered, i.e., dielectric, chiral and chiral nihility. Effects of polarization rotation due to the optical activity is studied with respect to the angle of incidence and frequency in terahertz domain. Chiral nihility introduces property of transparency to the structure for normal incidence while complete rejection is observed for chiral nihility-chiral nihility structure at oblique incidence.
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