Controllable bistable optical switch and normal mode splitting in hybrid optomechanical semiconductor microcavity containing single quantum dot driven by amplitude modulated field

Bhatt, Vijay; Barbhuiya, Sabur A.; Jha, Pradip K.; Bhattacherjee, Aranya B.

doi:10.1088/1361-6455/ab91e1

Cited by 17 publications

(6 citation statements)

References 80 publications

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“…Our results are based on numerical analysis implemented using Mathematica 10.0. The phenomenon of bistability has been studied and observed in several nonlinear optomechanical systems [34,[57][58][59]. We will consider the case of negative laser detuning, which is normally required in dispersive coupling for multibranch solutions [5].…”

Section: Resultsmentioning

confidence: 99%

Polariton multistability in a nonlinear optomechanical cavity

Bhatt

Yadav

Bhattacherjee

2021

J. Phys.: Condens. Matter

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We theoretically study the polariton multistability in a solid state based optomechanical resonator embedded with a quantum well and a χ (2) second order nonlinear medium. The excitonic transition inside the quantum well is strongly coupled to the optical cavity mode. The polariton formed due to the mixing of cavity photons and exciton states are coupled to the mechanical mode which gives rise to the bistable behavior. A transition from bistability to tristability occurs in the presence of a strong χ (2) nonlinearity. Switching between bistability and tristability can also be controlled using exciton-cavity and optomechanical coupling making the system highly tunable. Tristability appears at low input power making it a suitable candidate for polaritonic devices which requires low input power.

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Section: Resultsmentioning

confidence: 99%

Polariton multistability in a nonlinear optomechanical cavity

Bhatt

Yadav

Bhattacherjee

2021

J. Phys.: Condens. Matter

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“…Here, a smooth transition from the Off-state to the On-state can be seen for ∆ q = 0.5ω m1 (Blue dashed line). However, for a lower value of excitonpump detuning ∆ q = 0.3ω m1 (Red solid line), a sharp transition from Off-state to On-state can be seen which indicates a higher gain and is favourable for optical switching [69,70]. A sharp transition indicates a greater switching ratio, which is calculated as the ratio of maximum to minimum cavity emission in the steady-state driving curve using the equation, switching ratio = (Pout)max (Pout) min ; where P out =< a † 0 a 0 >.…”

Section: Optical Multistabilitymentioning

confidence: 99%

Coupling of QD-based PhC nanocavity with two mechanical modes: an approach to tunable optical switching and sensing applications

Yeasmin

Barbhuiya

Bhattacherjee

et al. 2023

J. Opt.

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We theoretically study the dynamical change in the ampliﬁcation of the output probe ﬁeld spectra of a hybrid optomechanical system consisting of two mechanical modes coupled to a photonic crystal (PhC) nanocavity. The PhC cavity is also embedded with a quantum dot (two-level system) and simultaneously driven by an external pump and a probe ﬁeld. We show that multiple number of transparency windows that appear can be controlled by the QD-cavity coupling strength and also the Fano proﬁles are directly measured by the resonant frequency of the mechanical mode. We also show the optical transition from bistability to tristability/multistability by adjusting the switching threshold of the system parameters. These results can also be used to study frequency optical nonreciprocity and all-optical switches in multi-resonator photonic devices.

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“…Simultaneously, interesting phenomenon of optical bistability has been investigated in a variety of optomechanical systems [57][58][59][60][61][62] and has been experimentally observed in semiconductor microcavities. [63] All of these systems exhibit a high degree of nonlinearity due to dynamic back action caused by radiation pressure.…”

Section: Introductionmentioning

confidence: 99%

Holstein–Primakoff (H‐P) Approach to Determine the Optical Response of Hybrid Optomechanical System Containing Multiple Quantum Dots

et al. 2023

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A theoretical model is presented to study the hybrid optomechanical system comprising an ensemble of N number of quantum dots (QDs). Utilizing the Holstein-Primakoff (H-P) transformation formalism, the calculations become easily scalable. The bistability in this hybrid optomechanical system is studied in the presence of third order nonlinear 𝝌 (3) medium using the H-P transformation method and to verify the results, numerical method has also been utilized. It is also demonstrated that the system's parameters may be tuned to alter the bistability phenomenon and absorption spectrum's response, which exhibits both positive and negative absorption (emission). This alternative approach (H-P transform) is demonstrated to solve analytically the system containing multiple QDs in an elegant manner.

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Controllable bistable optical switch and normal mode splitting in hybrid optomechanical semiconductor microcavity containing single quantum dot driven by amplitude modulated field

Cited by 17 publications

References 80 publications

Polariton multistability in a nonlinear optomechanical cavity

Polariton multistability in a nonlinear optomechanical cavity

Coupling of QD-based PhC nanocavity with two mechanical modes: an approach to tunable optical switching and sensing applications

Holstein–Primakoff (H‐P) Approach to Determine the Optical Response of Hybrid Optomechanical System Containing Multiple Quantum Dots

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