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Photonic Quasi-Crystal Light Emitting Diodes, - comparisons of device performance with pattern pitch

Photonic Quasi-Crystal Light Emitting Diodes, - comparisons of device performance with pattern pitch
Photonic Quasi-Crystal Light Emitting Diodes, - comparisons of device performance with pattern pitch
In this paper we discuss theoretical modelling methods for the design of photonic crystal and photonic quasi-crystal (PQC) LEDs - and apply them to the analysis of the extraction enhancement performance and shaping of the emitted beam profile of PQC-LED structures. In particular we investigate the effect of the pitch of the PQC patterning, and consider the physical mechanisms giving rise to performance improvements. In addition, we examine the relative contributions to performance improvements from effective index reduction effects that alter the conditions for total internal reflection at the device air interface, and from photonic crystal scattering effects that give rise to radically improved extraction performance. Comparisons are made with the performance of recently fabricated devices.
Tillin, Martin
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Charlton, Martin
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Gong, Zheng
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Khokhar, Ali Z
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Massoubre, David
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Watson, Ian M
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Dawson, Martin D
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Rahman, Faiz
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Johnson, Nigel P
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De La Rue, Richard M
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Lin, Sean
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Tillin, Martin
bd39e73c-e29b-4fa8-907d-682d7f4ed70f
Charlton, Martin
fcf86ab0-8f34-411a-b576-4f684e51e274
Gong, Zheng
8fec227f-4dcc-431e-85c3-13a520574886
Khokhar, Ali Z
a635bb19-b119-42ba-a8c7-74dfe86ea017
Massoubre, David
445d404b-3af1-4e26-bf4d-98e8db88f9ba
Watson, Ian M
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Dawson, Martin D
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Rahman, Faiz
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Johnson, Nigel P
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De La Rue, Richard M
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Lin, Sean
b0d01c18-ad74-463b-86ac-1792a513c99d

Tillin, Martin, Charlton, Martin, Gong, Zheng, Khokhar, Ali Z, Massoubre, David, Watson, Ian M, Dawson, Martin D, Rahman, Faiz, Johnson, Nigel P, De La Rue, Richard M and Lin, Sean (2010) Photonic Quasi-Crystal Light Emitting Diodes, - comparisons of device performance with pattern pitch Proceedings of the SPIE

Record type: Article

Abstract

In this paper we discuss theoretical modelling methods for the design of photonic crystal and photonic quasi-crystal (PQC) LEDs - and apply them to the analysis of the extraction enhancement performance and shaping of the emitted beam profile of PQC-LED structures. In particular we investigate the effect of the pitch of the PQC patterning, and consider the physical mechanisms giving rise to performance improvements. In addition, we examine the relative contributions to performance improvements from effective index reduction effects that alter the conditions for total internal reflection at the device air interface, and from photonic crystal scattering effects that give rise to radically improved extraction performance. Comparisons are made with the performance of recently fabricated devices.

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Submitted date: 2010
Organisations: Nanoelectronics and Nanotechnology

Identifiers

Local EPrints ID: 270975
URI: http://eprints.soton.ac.uk/id/eprint/270975
PURE UUID: 943b2673-e12d-4261-9b22-d585e23109db

Catalogue record

Date deposited: 04 May 2010 10:17
Last modified: 18 Jul 2017 06:48

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Contributors

Author: Martin Tillin
Author: Martin Charlton
Author: Zheng Gong
Author: Ali Z Khokhar
Author: David Massoubre
Author: Ian M Watson
Author: Martin D Dawson
Author: Faiz Rahman
Author: Nigel P Johnson
Author: Richard M De La Rue
Author: Sean Lin

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