External modes in quantum dot light emitting diode with filtered optical feedback

Husseini, Hussein B. Al; Naimee, K. Al; Al-Khursan, Amin H.; Khedir, Ali H.

doi:10.1063/1.4953651

Cited by 16 publications

(12 citation statements)

References 28 publications

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“…The work in Al-Nashy et al 22 studies SGC in DQD structure without WL. The results of Figue 4 can be explained here depending on the conclusion in Al Husseini et al, 23 where inclusion of WL washing out the undesired modes due to its long capture time, which of course increases gain. Thus, the result in Figure 4(b) was in coincidence with the conclusion of Al Husseini et al 23…”

Section: Resultsmentioning

confidence: 83%

“…20,21 In the recent article, Al-Nashy et al 22 studies SGC in DQD Y-structure. Since QD structures are multilayered where they are formed by different layers (a two-dimensional wetting layer, WL, and a completely quantized QD layer), 23 thus it is important to include the effect of WL in the simulation of SGC. Taking WL state into account gives a ladder-plus-Y DQD structure.…”

Section: Introductionmentioning

confidence: 99%

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Spontaneously generated coherence in ladder-plus-Y double quantum dot system

Al-Nashy

Jasim

Al-Shatravi

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part N:

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A model was presented for linear susceptibility in ladder-plus-Y configuration of double quantum dot system using density matrix theory and including spontaneously generated coherence of Λ-type system. Wetting layer and quantum dot inhomogeneity were considered in the calculations, which gives a practical description of double quantum dot structures well. With increasing spontaneously generated coherence from Λ-component, the dispersion was increased and shifted under spontaneously generated coherence. The inclusion of wetting layer under spontaneously generated coherence increases gain which coincides with the published results. A possibility of slow light was predicted.

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Section: Resultsmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Spontaneously generated coherence in ladder-plus-Y double quantum dot system

Al-Nashy

Jasim

Al-Shatravi

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part N:

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“…Since then, different configurations of QD semiconductors have been theoretically investigated. The optical interaction of QD-LED has been mostly studied in a single device subject to feedback [12][13][14].…”

Section: Coupling Qd Laser Resultsmentioning

confidence: 99%

Different Approaches of Synchronization in Chaotic-Coupled QD Lasers

Husseini¹,

Naimee²

2018

Chaos Theory

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The investigation of synchronization phenomena on measured theoretical data such as time series has recently become an increasing focus of interest. In this chapter, the synchronized states (including steady state, periodic or chaotic) in coupled quantum dot lasers (dimensionless rate equations) are considered with both bidirectional and unidirectional synchronization. Different approaches for measuring synchronization have been proposed that rely on certain characteristic features of the dynamical system under investigation. Results show that the measure to be applied to a certain task can be chosen according to information in test applications, although certain dynamical features of a system under investigation (e.g., bifurcation and amplitude correlation) may render certain measures more suitable than others.

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“…For a three-level atomic system where the transition is homogeneously broadened, it can be shown from the Einstein relation that: 14 a ¼ AGn o :…”

Section: Qd-led Model With Fofmentioning

confidence: 99%

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

Husseini

Naimee

Khidhir

et al. 2016

Nanomaterials and Nanotechnology

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We study a quantum dot light-emitting diodes (QD-LEDs) subject to filtered optical feedback, where the filter is characterized by a mean frequency O m and a filter width λ. In the limit of a narrow filter (λ ¼ 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 O m. This is illustrated for a filter-induced global bistability.

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External modes in quantum dot light emitting diode with filtered optical feedback

Cited by 16 publications

References 28 publications

Spontaneously generated coherence in ladder-plus-Y double quantum dot system

Spontaneously generated coherence in ladder-plus-Y double quantum dot system

Different Approaches of Synchronization in Chaotic-Coupled QD Lasers

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

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