Giant Kerr nonlinearity induced by tunneling in triple quantum dot molecules

This version is available at https://strathprints.strath.ac.uk/61943/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the Strathprints administrator: strathprints@strath.ac.ukThe Strathprints institutional repository (https://strathprints.strath.ac.uk) is a digital archive of University of Strathclyde research outputs. It has been developed to disseminate open access research outputs, expose data about those outputs, and enable the management and persistent access to Strathclyde's intellectual output. We show that optical turbulence extreme events can exist in the transverse dynamics of a cavity containing molecules of triple quantum dots under conditions close to tunneling-induced transparency. These nanostructures, when coupled via tunneling, form a four-level configuration with tunable energy-level separations. We show that such a system exhibits multistability and bistability of Turing structures in instability domains with different critical wave vectors. By numerical simulation of the mean-field equation that describes the transverse dynamics of the system, we show that the simultaneous presence of two transverse solutions with opposite nonlinearities gives rise to a series of turbulent structures with the capability of generating two-dimensional rogue waves.

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“…2(a), where vanishing absorption is identified at δ = 0.37. Details of such calculations for a variety of QDMs can be found in [17][18][19].…”

Section: The Modelmentioning

confidence: 99%

Optical turbulence and transverse rogue waves in a cavity with triple-quantum-dot molecules

et al. 2017

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“…Using the Maclaurin formula and neglecting the higher-order smaller terms, 47 χ can be expanded into the second order of Ω p ,…”

Section: Model and Equationsmentioning

confidence: 99%

“…In our calculations, the value of the parameters are based on Ref. 47 and references therein, and the values are realistic and scaled by γ 1 .…”

Section: Model and Equationsmentioning

confidence: 99%

“…TQDs composed of linear or triangular type have been fabricated in much experimental progress. [40][41][42][43] Theoretical works of TQDs such as transmission-dispersion spectrum, 44 multiple transparency windows and cavity linewidth narrowing, 45,46 Kerr nonlinearity 47 and resonance fluorescence spectrum 48 are studied. In this paper, we investigate the OB characters of the triangular TQDs embedded in a unidirectional ring cavity.…”

Section: Introductionmentioning

confidence: 99%

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Control of optical bistability and third-order nonlinearity via tunneling induced quantum interference in triangular quantum dot molecules

et al. 2015

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Control of optical bistability and third-order nonlinearity via tunneling induced quantum interference in triangular quantum dot molecules The optical bistability of a triangular quantum dot molecules embedded inside a unidirectional ring cavity is studied. The type, the threshold and the hysteresis loop of the optical bistability curves can be modified by the tunneling parameters, as well as the probe laser field. The linear and nonlinear susceptibilities of the medium are also studied to interpret the corresponding results. The physical interpretation is that the tunneling can induce the quantum interference, which modifies the linear and the nonlinear response of the medium. As a consequence, the characteristics of the optical bistability are changed. The scheme proposed here can be utilized for optimizing and controlling the optical switching process. C 2015 Author(s

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“…And it is also possible to induce quantum interference and coherence in QDMs only by the tunneling [34][35][36]. Therefore, QDMs with two or three dots can be used in the field of EIT [37,38] or tunneling induced transparency (TIT) [39], optical bistability [40,41], entanglement [42], resonance fluorescence spectrum [43], coherent population transfer [44], Kerr nonlinearity [45,46] and cavity transmission spectrum [47].…”

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confidence: 99%

Tunneling induced transparency and giant Kerr nonlinearity in multiple quantum dot molecules

Tian¹,

Wan²,

Xing³

et al. 2015

Physica E: Low-dimensional Systems and Nanostructures

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Giant Kerr nonlinearity induced by tunneling in triple quantum dot molecules

Cited by 34 publications

References 38 publications

Optical turbulence and transverse rogue waves in a cavity with triple-quantum-dot molecules

Optical turbulence and transverse rogue waves in a cavity with triple-quantum-dot molecules

Control of optical bistability and third-order nonlinearity via tunneling induced quantum interference in triangular quantum dot molecules

Tunneling induced transparency and giant Kerr nonlinearity in multiple quantum dot molecules

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