Dynamics of quantum dot light-emitting diode with filtered optical feedback

We study a quantum dot light-emitting diodes (QD-LEDs) subject to filtered optical feedback, where the filter is characterized by a mean frequency Ω m and a filter width λ. In the limit of a narrow filter (λ = 0), the QD-LED equations reduce under some conditions to the equations for a QD-LED with o...

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Bibliographic Details
Published inNanomaterials and nanotechnology Vol. 6; p. 184798041666367
Main Authors Al Husseini, Hussein B, Al Naimee, Kais A, Khidhir, Ali H, Al-Khursan, Amin H
Format Journal Article
LanguageEnglish
Published London, England SAGE Publications 13.10.2016
Subjects
optical feedback
Quantum dot
control
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Summary:We study a quantum dot light-emitting diodes (QD-LEDs) subject to filtered optical feedback, where the filter is characterized by a mean frequency Ω m and a filter width λ. In the limit of a narrow filter (λ = 0), the QD-LED equations reduce under some conditions to the equations for a QD-LED with optical feedback, whereas they become the Lang Kobayashi equations in the limit of an unbounded filter width (λ > 0). Through simulations based on the rate equations for a QD-LED with filtered external optical feedback modes, we show that the output’s nonlinear dynamical system attractors can be controlled through the filter parameters: the filter’s spectral width λ and its central frequency Ω m. This is illustrated for a filter-induced global bistability.
ISSN:1847-9804
1847-9804
DOI:10.1177/1847980416663673