Robust Extraction of Hyperbolic Metamaterial Permittivity Using Total Internal Reflection Ellipsometry,ACS Photonics

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Robust Extraction of Hyperbolic Metamaterial Permittivity Using Total Internal Reflection Ellipsometry
ACS Photonics ( IF 6.5 ) Pub Date : 2018-03-13 00:00:00 , DOI: 10.1021/acsphotonics.8b00086
Cheng Zhang _{1,

2} , Nina Hong ₃ , Chengang Ji ₄ , Wenqi Zhu _{1,

2} , Xi Chen ₄ , Amit Agrawal _{1,

2} , Zhong Zhang ₄ , Tom E. Tiwald ₃ , Stefan Schoeche ₃ , James N. Hilfiker ₃ , L. Jay Guo ₄ , Henri J. Lezec ₁

Affiliation

Hyperbolic metamaterials are optical materials characterized by highly anisotropic effective permittivity tensor components having opposite signs along orthogonal directions. The techniques currently employed for characterizing the optical properties of hyperbolic metamaterials are limited in their capability for robust extraction of the complex permittivity tensor. Here we demonstrate how an ellipsometry technique based on total internal reflection can be leveraged to extract the permittivity of hyperbolic metamaterials with improved robustness and accuracy. By enhancing the interaction of light with the metamaterial stacks, improved ellipsometric sensitivity for subsequent permittivity extraction is obtained. The technique does not require any modification of the hyperbolic metamaterial sample or sophisticated ellipsometry setup and could therefore serve as a reliable and easy-to-adopt technique for characterization of a broad class of anisotropic metamaterials.

中文翻译：

使用全内反射椭圆仪稳健提取双曲线超材料的介电常数

双曲线超材料是光学材料，其特征在于高度各向异性的有效介电常数张量分量在正交方向上具有相反的符号。当前用于表征双曲线超材料的光学特性的技术在其可靠地提取复介电常数张量的能力方面受到限制。在这里，我们演示了如何利用基于全内反射的椭圆仪技术来提取双曲线超材料的介电常数，从而提高鲁棒性和准确性。通过增强光与超材料叠层的相互作用，可获得用于后续介电常数提取的改进的椭偏灵敏度。

更新日期：2018-03-13

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