Print Email Facebook Twitter Efficient optimization method for the light extraction from periodically modulated LEDs using reciprocity Title Efficient optimization method for the light extraction from periodically modulated LEDs using reciprocity Author Janssen, O.T.A. Wachters, A.J.H. Urbach, H.P. Faculty Applied Sciences Department Imaging Science and Technology Date 2010-11-10 Abstract The incoherent emission of periodically structured Light Emitting Diodes (LEDs) can be computed at relatively low computational cost by applying the reciprocity method. We show that by another application of the reciprocity principle, the structure of the LED can be optimized to obtain a high emission. We demonstrate the method by optimizing one-dimensional grating structures. The optimized structures have twice the extraction efficiency of an optimized flat structure. Subject computational electromagnetic methodsdiffraction gratingsphotonic crystalslight-emitting diodes To reference this document use: http://resolver.tudelft.nl/uuid:1a7fe364-7b94-424e-b915-1de0d14d80de DOI https://doi.org/10.1364/OE.18.024522 Publisher Optical Society of America ISSN 1094-4087 Source http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-24-24522 Source Optics Express, 18 (24), 2010 Part of collection Institutional Repository Document type journal article Rights (c) 2010 Optical Society of America Files PDF Janssen_2010.pdf 1.33 MB Close viewer /islandora/object/uuid:1a7fe364-7b94-424e-b915-1de0d14d80de/datastream/OBJ/view