Electrically driven europium-doped GaN microdisk.
Opt Lett
; 48(17): 4590-4592, 2023 Sep 01.
Article
em En
| MEDLINE
| ID: mdl-37656562
ABSTRACT
For the practical implementation of microdisk resonators as active nanophotonic devices, it is essential that they can be electrically driven. However, it is difficult to inject current in such small-scale devices without severely degrading their optical properties. We demonstrate the successful fabrication of an electrically injected microdisk based on Eu-doped GaN, in which an SiO2 spacer is used to prevent the interaction of the metal contact with the optical resonances. The microdisk shows Eu-related emission upon electrical injection and from the observed resonance peak, a cavity quality (Q)-factor of 3400 is concluded.
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MEDLINE
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En
Ano de publicação:
2023
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Article