Photonic quasi-crystal light emitting diodes: comparisons of device performance with pattern pitch

M. Tillin, M.D.B. Charlton, Z. Gong, A.Z. Khokhar, D. Massoubre, I.M. Watson, E. Gu, M.D. Dawson, F. Rahman, N.P. Johnson, D. Macintyre, R.M. De La Rue, K. Parsons, S. Lin

Research output: Contribution to journalArticle

3 Citations (Scopus)

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.
LanguageEnglish
Pages77130B-1
JournalProceedings of SPIE the International Society for Optical Engineering
Volume7713
DOIs
Publication statusPublished - 12 May 2010

Fingerprint

Semiconductor diodes
Quasicrystals
Photonic crystals
Photonics
Diode
Light emitting diodes
light emitting diodes
photonics
crystals
Photonic Crystal
Total Internal Reflection
Patterning
Modeling Method
Enhancement
Scattering
augmentation
air
profiles
Air
scattering

Keywords

  • photonic crystal LEDs
  • photonic quasi-crystal LEDs
  • light emitting diodes
  • modelling
  • pattern pitch

Cite this

Tillin, M. ; Charlton, M.D.B. ; Gong, Z. ; Khokhar, A.Z. ; Massoubre, D. ; Watson, I.M. ; Gu, E. ; Dawson, M.D. ; Rahman, F. ; Johnson, N.P. ; Macintyre, D. ; De La Rue, R.M. ; Parsons, K. ; Lin, S. / Photonic quasi-crystal light emitting diodes: comparisons of device performance with pattern pitch. In: Proceedings of SPIE the International Society for Optical Engineering. 2010 ; Vol. 7713. pp. 77130B-1.
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Tillin, M, Charlton, MDB, Gong, Z, Khokhar, AZ, Massoubre, D, Watson, IM, Gu, E, Dawson, MD, Rahman, F, Johnson, NP, Macintyre, D, De La Rue, RM, Parsons, K & Lin, S 2010, 'Photonic quasi-crystal light emitting diodes: comparisons of device performance with pattern pitch' Proceedings of SPIE the International Society for Optical Engineering, vol. 7713, pp. 77130B-1. https://doi.org/10.1117/12.853796

Photonic quasi-crystal light emitting diodes: comparisons of device performance with pattern pitch. / Tillin, M.; Charlton, M.D.B.; Gong, Z.; Khokhar, A.Z.; Massoubre, D.; Watson, I.M.; Gu, E.; Dawson, M.D.; Rahman, F.; Johnson, N.P.; Macintyre, D.; De La Rue, R.M.; Parsons, K.; Lin, S.

In: Proceedings of SPIE the International Society for Optical Engineering, Vol. 7713, 12.05.2010, p. 77130B-1.

Research output: Contribution to journalArticle

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AU - Tillin, M.

AU - Charlton, M.D.B.

AU - Gong, Z.

AU - Khokhar, A.Z.

AU - Massoubre, D.

AU - Watson, I.M.

AU - Gu, E.

AU - Dawson, M.D.

AU - Rahman, F.

AU - Johnson, N.P.

AU - Macintyre, D.

AU - De La Rue, R.M.

AU - Parsons, K.

AU - Lin, S.

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