Engineering of low-loss metal for nanoplasmonic and metamaterials applications

被引：84

作者：

Bobb, D. A. ^{[1
]}

Zhu, G. ^{[1
]}

Mayy, M. ^{[1
]}

Gavrilenko, A. V. ^{[1
]}

Mead, P. ^{[1
]}

Gavrilenko, V. I. ^{[1
]}

Noginov, M. A. ^{[1
]}

机构：

[1] Norfolk State Univ, Ctr Mat Res, Norfolk, VA 23504 USA

来源：

APPLIED PHYSICS LETTERS | 2009年 / 95卷 / 15期

关键词：

SURFACE-PLASMON POLARITON; DIELECTRIC MEDIUM; GAIN;

D O I：

10.1063/1.3237179

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have shown that alloying a noble metal (gold) with another metal (cadmium), which can contribute two electrons per atom to a free electron gas, can significantly improve the metal's optical properties in certain wavelength ranges and make them worse in the other parts of the spectrum. In particular, in the gold-cadmium alloy we have demonstrated a significant expansion of the spectral range of metallic reflectance to shorter wavelengths. The experimental results and the predictions of the first principles theory demonstrate an opportunity for the improvement and optimization of low-loss metals for nanoplasmonic and metamaterials applications. (C) 2009 American Institute of Physics. [doi:10.1063/1.3237179]

引用

页数：3

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