各向异性有效媒质理论预测的亚波长 ITO 棒阵列的 IR 等离子体激元特性。
The IR plasmonic properties of sub-wavelength ITO rod arrays predicted by anisotropic effective medium theory.
机构信息
Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China. Department of Physics and Astronomy, and Nanoscale Science and Engineering Center, University of Georgia, Athens, GA 30602, United States of America.
出版信息
Nanotechnology. 2020 Feb 7;31(7):075203. doi: 10.1088/1361-6528/ab5275. Epub 2019 Oct 29.
Simple three-layer Fresnel equations combined with Maxwell-Garnett approximation were applied to study the IR plasmonic properties of indium-tin-oxide (ITO) nanorods. By treating the anisotropic nanorod layer as a layer with an effective dielectric constant, and using anisotropic effective medium theory, we were able to accurately predict the surface plasmon resonance behavior of ITO nanorods with different nanorod length, spacing, and tilt angle. This model allows a fast and computationally inexpensive calculation to predict the plasmonic properties of arrayed nanorods.
简单的三层菲涅耳方程结合麦克斯韦-加涅特近似被应用于研究氧化铟锡（ITO）纳米棒的红外等离子体特性。通过将各向异性纳米棒层处理为具有有效介电常数的层，并使用各向异性有效介质理论，我们能够准确预测具有不同纳米棒长度、间距和倾斜角的 ITO 纳米棒的表面等离子体共振行为。该模型允许快速且计算成本低廉的计算来预测阵列纳米棒的等离子体特性。
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