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arXiv 1302.6733math-phmath.MPphysics.optics
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来自手征和/或手征虚无/虚无超材料层的聚焦、功率调谐和抑制

Focusing, Power Tunneling and Rejection from Chiral and/or Chiral Nihility/Nihility Metamaterials Layers

Syed Touseef Hussain Shah, Faiz Ahmad, Aqeel A. Syed, Qaisar Abbas Naqvi

摘要:

本文用Maslov方法研究了平面电磁波在由手征和/或手征无源异向介质构成的大尺寸抛物面反射器上的聚焦。首先,利用传输矩阵法计算了平面电磁波在两层平行的手征和/或手征无源异向介质上的透射和反射。讨论了入射角、手征参数和各层阻抗的变化对结果的影响。特殊情况下,采取非常大和小的值的第二层的介电常数,而假设相应的手征值等于零,也被处理。这些特殊情况分别等效于来自理想电导体背衬的手性层和虚无背衬的手性层的反射。利用平行层反射的结果研究了大尺寸抛物面反射镜的聚焦问题。本研究从抛物面反射面聚焦,不仅统一了不同研究者的几个已发表的工作,而且提供了对新情况的更好理解。

英文摘要:

Focusing of electromagnetic plane wave from a large size paraboloidal reflector, composed of layers of chiral and/or chiral nihility metamaterials, has been studied us- ing Maslov's method. First, the transmission and reflection of electromagnetic plane wave from two parallel layers of chiral and/or chiral nihility metamaterials are cal- culated using transfer matrix method. The effects of change of angle of incidence, chirality parameters and impedances of layers are noted and discussed. Special cases by taking very large and small values of permittivity of second layer, while assuming value of corresponding chirality equal to zero, are also treated. These special cases are equivalent to reflection from a perfect electric conductor backed chiral layer and nihility backed chiral layer, respectively. Results of reflection from parallel layers have been utilized to study focusing from a large size paraboloidal reflector. The present study, on focusing from a paraboloidal re°ector, not only unifies several published works conducted by different researchers but also provides better understanding of new cases.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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