Highly directional emission and beam steering from organic light-emitting diodes with a substrate diffractive optical element
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Highly directional emission from an organic light-emitting diode (OLED) is demonstrated by out-coupling the substrate mode from a Eu-based OLED using a diffractive optical element embedded in the substrate. This approach gives emission that is confined in a single narrow cone with FWHM divergence of 15° or less, which is very different from the normal Lambertian emission of OLEDs.
Zhang , S , Turnbull , G A & Samuel , I D W 2014 , ' Highly directional emission and beam steering from organic light-emitting diodes with a substrate diffractive optical element ' , Advanced Optical Materials , vol. EarlyView . https://doi.org/10.1002/adom.201300441
Advanced Optical Materials
© 2014 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
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