1 December 2017 Surface photonic crystal structures for LED emission modification
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Proceedings Volume 10603, Photonics, Devices, and Systems VII; 1060319 (2017) https://doi.org/10.1117/12.2293527
Event: Photonics Prague 2017, 2017, Prague, Czech Republic
Abstract
Application of photonic crystal structures (PhC) can be attractive for overall and local enhancement of light from patterned areas of the light emitting diode (LED) surface. We used interference and near-field scanning optical microscope lithography for patterning of the surface of GaAs/AlGaAs based LEDs emitted at 840 nm. Also new approach with patterned polydimethylsiloxane (PDMS) membrane applied directly on the surface of red emitting LED was investigated. The overall emission properties of prepared LED with patterned structure show enhanced light extraction efficiency, what was documented from near- and far-field measurements.
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Frantisek Uherek, Jaroslava Škriniarová, Anton Kuzma, Ľuboš Šušlik, Ivana Lettrichova, Dong Wang, Peter Schaaf, "Surface photonic crystal structures for LED emission modification", Proc. SPIE 10603, Photonics, Devices, and Systems VII, 1060319 (1 December 2017); doi: 10.1117/12.2293527; https://doi.org/10.1117/12.2293527
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