Strongly directional emission from AlGaAs/GaAs light-emitting diodes
- 26 November 1990
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 57 (22) , 2327-2329
- https://doi.org/10.1063/1.103883
Abstract
We show for the first time that strongly directional emission of defined polarization can be achieved from conventional AlGaAs/GaAs double‐heterostructure surface‐emitting light‐emitting diodes (LEDs) via coupling to surface plasmons. By microstructuring the surface, we have fabricated LEDs with a beam divergence of less than 4° and an increased quantum efficiency. It is demonstrated that the surface plasmon excitation and emission mechanism have the potential to improve the performance of LEDs.Keywords
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