Azimuthal anisotropy of light extraction from photonic crystal light-emitting diodes

Chun Feng Lai; Hao-Chung Kuo; C. H. Chao; H. T. Hsueh; J. F T Wang; W. Y. Yeh; J. Y. Chi; Tien-chang Lu; S. C. Wang

doi:10.1002/pssc.200778453

Azimuthal anisotropy of light extraction from photonic crystal light-emitting diodes

Chun Feng Lai, Hao-Chung Kuo, C. H. Chao, H. T. Hsueh, J. F T Wang, W. Y. Yeh, J. Y. Chi, Tien-chang Lu, S. C. Wang

光電工程學系

研究成果: Conference article › 同行評審

摘要

Photonic crystal (PhC) light-emitting diodes (LEDs) exhibiting anisotropic light extraction have been investigated experimentally and theoretically. It is found that the anisotropic light extraction strongly depends on the lattice constant and orientation. Optical images of the anisotropy in the azimuthal direction are obtained using annular structure with triangular lattice. 6-fold symmetric light extraction patterns with varying number of petals are observed. More petals in multiple of 6 appear in the observed image with lattice constant increasing. This anisotropic behavior suggests a new means to optimize the PhC design of GaN LED for light extraction.

原文	English
頁（從 - 到）	2099-2101
頁數	3
期刊	Physica Status Solidi (C) Current Topics in Solid State Physics
卷	5
發行號	6
DOIs	https://doi.org/10.1002/pssc.200778453
出版狀態	Published - 13 5月 2008
事件	7th International Conference of Nitride Semiconductors, ICNS-7 - Las Vegas, NV, 美國持續時間: 16 9月 2007 → 21 9月 2007

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10.1002/pssc.200778453

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title = "Azimuthal anisotropy of light extraction from photonic crystal light-emitting diodes",

abstract = "Photonic crystal (PhC) light-emitting diodes (LEDs) exhibiting anisotropic light extraction have been investigated experimentally and theoretically. It is found that the anisotropic light extraction strongly depends on the lattice constant and orientation. Optical images of the anisotropy in the azimuthal direction are obtained using annular structure with triangular lattice. 6-fold symmetric light extraction patterns with varying number of petals are observed. More petals in multiple of 6 appear in the observed image with lattice constant increasing. This anisotropic behavior suggests a new means to optimize the PhC design of GaN LED for light extraction.",

author = "Lai, {Chun Feng} and Hao-Chung Kuo and Chao, {C. H.} and Hsueh, {H. T.} and Wang, {J. F T} and Yeh, {W. Y.} and Chi, {J. Y.} and Tien-chang Lu and Wang, {S. C.}",

year = "2008",

month = may,

day = "13",

doi = "10.1002/pssc.200778453",

language = "English",

volume = "5",

pages = "2099--2101",

journal = "Physica Status Solidi (C) Current Topics in Solid State Physics",

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note = "7th International Conference of Nitride Semiconductors, ICNS-7 ; Conference date: 16-09-2007 Through 21-09-2007",

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AU - Lai, Chun Feng

AU - Kuo, Hao-Chung

AU - Chao, C. H.

AU - Hsueh, H. T.

AU - Wang, J. F T

AU - Yeh, W. Y.

AU - Chi, J. Y.

AU - Lu, Tien-chang

AU - Wang, S. C.

PY - 2008/5/13

Y1 - 2008/5/13

N2 - Photonic crystal (PhC) light-emitting diodes (LEDs) exhibiting anisotropic light extraction have been investigated experimentally and theoretically. It is found that the anisotropic light extraction strongly depends on the lattice constant and orientation. Optical images of the anisotropy in the azimuthal direction are obtained using annular structure with triangular lattice. 6-fold symmetric light extraction patterns with varying number of petals are observed. More petals in multiple of 6 appear in the observed image with lattice constant increasing. This anisotropic behavior suggests a new means to optimize the PhC design of GaN LED for light extraction.

AB - Photonic crystal (PhC) light-emitting diodes (LEDs) exhibiting anisotropic light extraction have been investigated experimentally and theoretically. It is found that the anisotropic light extraction strongly depends on the lattice constant and orientation. Optical images of the anisotropy in the azimuthal direction are obtained using annular structure with triangular lattice. 6-fold symmetric light extraction patterns with varying number of petals are observed. More petals in multiple of 6 appear in the observed image with lattice constant increasing. This anisotropic behavior suggests a new means to optimize the PhC design of GaN LED for light extraction.

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U2 - 10.1002/pssc.200778453

DO - 10.1002/pssc.200778453

M3 - Conference article

AN - SCOPUS:77951227897

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VL - 5

SP - 2099

EP - 2101

JO - Physica Status Solidi (C) Current Topics in Solid State Physics

JF - Physica Status Solidi (C) Current Topics in Solid State Physics

IS - 6

T2 - 7th International Conference of Nitride Semiconductors, ICNS-7

Y2 - 16 September 2007 through 21 September 2007

ER -

Azimuthal anisotropy of light extraction from photonic crystal light-emitting diodes

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