Filtered Optical Feedback in Quantum Dot Light Emitting Diode
| Autor: | F. Tito Arecchi, Kais A. M. Al Naimee, S.F. Abdalah, Riccardo Meucci, Amin H. Al Khursan, Hussein B. Al Husseini |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
business.industry Mechanical Engineering 02 engineering and technology Condensed Matter Physics law.invention 020210 optoelectronics & photonics Mechanics of Materials Quantum dot law 0202 electrical engineering electronic engineering information engineering Optoelectronics General Materials Science business Light-emitting diode |
| Zdroj: | Materials Science Forum. 915:171-178 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.915.171 |
| Popis: | This research reports a theoretical investigation on the role of filtered optical feedback (FOF) in the quantum dot light emitting diode (QD-LED). The underlying dynamics is affected by a sidle node, which returns to an elliptical shape when the wetting layer (WL) is neglected. Both filter width and time delay change the appearance of different dynamics (chaotic and mixed mode oscillations ,MMOs). The results agrees with the experimental observations. Here, the fixed point analysis for QDs was done for the first time. For QD-LED with FOF, the system transits from the coherence collapse (CC) case in conventional optical feedback (COF) to a coherent case with a filtered mode in FOF. It was found that the WL washes out the modes which is an unexpected result. This may attributed to the longer capture time of WL compared with that between QD states. Thus, WL reduces the chaotic behavior. |
| Databáze: | OpenAIRE |
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