@article{c0e59fd5057141a0a7189d1e3867be30,
title = "Directional control of light-emitting-diode emission via a subwavelength-apertured metal surface",
abstract = "A thin Au film with a hexagonal array of subwavelength apertures has been integrated onto a semiconductor light-emitting 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.",
keywords = "Light-emitting diodes (LEDS), Optical beams, Plasmons",
author = "Harries, {Michael D.} and Summers, {Huw D.}",
note = "Funding Information: Manuscript received June 23, 2006; revised August 1, 2006. This work was supported by the joint research councils, U.K. under the basic technology grant “Optical Biochips” and by the Welcome Trust under Grant 72640, “Nano-apertured lasers for cellular and molecular analysis.” The authors are with the School of Physics and Astronomy, Cardiff University, Cardiff CF24 3YB, Wales, U.K. (e-mail:
[email protected]). Digital Object Identifier 10.1109/LPT.2006.884243 Fig. 1. Scanning electron microscope image of the 50-nm gold film grating on the top surface of the LED (20-m current injection aperture). Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",
year = "2006",
month = nov,
day = "1",
doi = "10.1109/LPT.2006.884243",
language = "English (US)",
volume = "18",
pages = "2197--2199",
journal = "IEEE Photonics Technology Letters",
issn = "1041-1135",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "21",
}