Modulated optical transmission of subwavelength hole arrays in metal-VO2 films

被引：67

作者：

Suh, JY ^{[1
]}

Donev, EU

Lopez, R

Feldman, LC

Haglund, RF

机构：

[1] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA

[2] Vanderbilt Univ, Inst Nanoscale Sci & Engn, Nashville, TN 37235 USA

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 13期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.2190463

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate the modulation of the transmission of near-infrared light through a periodic array of subwavelength apertures in Ag-VO2 and Au-VO2 double-layer films using the semiconductor-to-metal phase transition in VO2. The transmitted intensity ratio increases by a factor of 8 as the VO2 goes from the semiconductor to the metal phase. We attribute this modulation to the switchable dielectric-permittivity contrast between the air-filled holes in the array and the surrounding VO2 material, a conjecture that is semiquantitatively confirmed by simulation.

引用

页数：3

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