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arXiv 1812.04547cond-mat.mtrl-sciphysics.optics
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双曲介质中定向非对称波的传播与折射弯曲

Oriented Asymmetric Wave Propagation and Refraction Bending in Hyperbolic Media

Rair Macêdo, Thomas Dumelow, Robert E. Camley, Robert L. Stamps

摘要:

石英晶体是一种具有光学活性声子的各向异性介质,在太赫兹波段可以激发双曲声子-极化激元。在这里,我们使用这种材料来说明如何通过改变晶体的各向异性轴相对于其表面的取向,可以大大修改体和表面双曲极化激元的行为。我们证明,理论和实验,双曲介质的取向相关的现象。我们显示的后果轻微的变化,在晶体的取向以各种方式,从创建双曲表面声子极化激元的示范定向不对称传输的辐射通过双曲介质。

英文摘要:

Crystal quartz is a well-known anisotropic medium with optically active phonons in the THz region where hyperbolic phonon-polaritons can be excited. Here, we use this material to illustrate how the behavior of bulk and surface hyperbolic polaritons can be drastically modified by changing the orientation of the crystal's anisotropy axis with respect to its surface. We demonstrate, both theoretically and experimentally, phenomena associated with the orientation of hyperbolic media. We show the consequences of slight changes in the crystal's orientation in various ways, from the creation of hyperbolic surface phonon-polaritons to the demonstration of oriented asymmetric transmission of radiation passing through a hyperbolic medium.

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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