Directional control of light-emitting-diode emission via a subwavelength-apertured metal surface

被引：15
|
作者：
Harries, Michael D. [1 ]
Summers, Huw D. [1 ]
机构：
[1] Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3YB, Wales
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2006年 / 18卷 / 21-24期
关键词：
light-emitting diodes (LEDs); optical beams; plasmons;
D O I：
10.1109/LPT.2006.884243
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A thin An film with a hexagonal array of subwavelength apertures has been integrated onto a semiconductor lightemitting diode. This produces a highly directional far-field pattern with a strong polarization dependence and alters the spectral shape of the light emission from the semiconductor. A two-dimensional k-space analysis of the experimental data shows good agreement with a simple model of surface plasmon to photon coupling via the periodic structure of the metal film.
引用
收藏
页码：2197 / 2199
页数：3
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