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GaN-based LEDs surrounded with a two-dimensional nanohole photonic crystal structure for effective laterally guided mode coupling |
Optics Letters, Vol. 36, Issue 9, pp. 1611-1613 (2011)
http://dx.doi.org/10.1364/OL.36.001611
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Abstract
Traditional implementation of photonic crystals (PhCs) on LED light emission surfaces results in weak coupling of light with the PhCs. Here we introduce a GaN-based LED surrounded with a nanohole PhC structure along the mesa edges. The laterally guided modes in the epi-structure can be effectively coupled with the two-dimensional periodic structure. The proposed structure results in the improvement of LED light extraction and provides flexibility of radiation directionality control.
© 2011 Optical Society of America
OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(350.4238) Other areas of optics : Nanophotonics and photonic crystals
(050.5298) Diffraction and gratings : Photonic crystals
(230.5298) Optical devices : Photonic crystals
ToC Category:
Optical Devices
History
Original Manuscript: February 25, 2011
Revised Manuscript: April 1, 2011
Manuscript Accepted: April 1, 2011
Published: April 27, 2011
Citation
Yun-Wei Cheng, Szu-Chieh Wang, Yu-Feng Yin, Liang-Yu Su, and JianJang Huang, "GaN-based LEDs surrounded with a two-dimensional nanohole photonic crystal structure for effective laterally guided mode coupling," Opt. Lett. 36, 1611-1613 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-9-1611
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