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

Michael D. Harries; Huw D. Summers

doi:10.1109/LPT.2006.884243

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

Michael D. Harries, Huw D. Summers

Houston Methodist

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

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.

Original language	English (US)
Pages (from-to)	2197-2199
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	18
Issue number	21
DOIs	https://doi.org/10.1109/LPT.2006.884243
State	Published - Nov 1 2006

Keywords

Light-emitting diodes (LEDS)
Optical beams
Plasmons

ASJC Scopus subject areas

Electrical and Electronic Engineering
Atomic and Molecular Physics, and Optics
Physics and Astronomy (miscellaneous)

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10.1109/LPT.2006.884243

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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.",

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doi = "10.1109/LPT.2006.884243",

language = "English (US)",

volume = "18",

pages = "2197--2199",

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AU - Summers, Huw D.

N1 - 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.

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N2 - 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.

AB - 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.

KW - Light-emitting diodes (LEDS)

KW - Optical beams

KW - Plasmons

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JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 21

ER -

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

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Keywords

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