Effective control and switching of optical multistability in a three-level V-type atomic system

Abdelaziz, Abdelsalam H. M.; Sarma, Amarendra K.

doi:10.1103/physreva.102.043719

Cited by 12 publications

(6 citation statements)

References 59 publications

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“…As an application, we have considered a three-level vee type atom [14,15,16,17,18,19,20,21,22] in a radiation field as shown in Fig. 1.…”

Section: Theoretical Modelmentioning

confidence: 99%

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Majorization effect on entropic functionals: An application to a V-type three-level atom-field interacting system

Nath¹

2021

Preprint

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The majorization effect on some entropic functionals, such as von-Neumann, Shannon, atomic Wehrl and Rényi entropies are investigated of a vee type three-level atom which interacts with a coherent field in a resonant cavity.Moreover, the fidelity, purity and linear entropy are investigated of two quantum systems, which contain photon number distributions (discrete) and Husimi Q function (continuous distribution). A relation between the majorization and localization properties of continuous density functionals is established. The results are compared and verified for continuous and discrete distributions.

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“…As an application, we have considered a three-level vee type atom [14,15,16,17,18,19,20,21,22] in a radiation field as shown in Fig. 1.…”

Section: Theoretical Modelmentioning

confidence: 99%

“…In this paper, we have considered a vee-type three-level atom, which interacts with a field in a resonant cavity [14,15,16,17,18,19,20,21,22]. We would like to study the atomic coherent state [52] of a three-level atom, whose evolution started with a coherent super position of its excited states and it is interacting with a coherent field.…”

mentioning

confidence: 99%

Majorization effect on entropic functionals: An application to a V-type three-level atom-field interacting system

Nath¹

2021

Preprint

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“…In recent years, a large number of theoretical and experimental studies on OB have been carried out induced by the multilevel atom-cavity coupling system [10][11][12][35][36][37][38]. It has been found that the three-level atomic optical bistable system has the characteristics of simple structure, various controllable factors, fast response speed and high feasibility.…”

Section: Introductionmentioning

confidence: 99%

Dynamic all-optical memory switching based on atomic optical bistable behavior in a three level Λ-type atomic system

He,

Fan,

Xie

2024

Laser Phys.

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We theoretically investigate the atomic optical bistability (AOB) in a three-level Λ-type atomic system confined in a unidirectional optical ring cavity. The role of the intensity or detuning of the control field on AOB is explored, and results show that absorption, dispersion, and nonlinearity can be modified significantly by the control field due to quantum coherence and interference in multilevel atomic systems. Thus, tuning the intensity or detuning of the control field can manipulate the switch-up and switch-down thresholds, as well as the area of the bistable hysteresis loop. According to the controllability of AOB, we design various schemes to realize dynamical all-optical switching between the high and low outputs of two bistable curves for a fixed cavity input. In addition, dynamical all-optical memory switching can be implemented by adding a pulse sequence for the intensity or detuning of the control field. For appropriate parameters, such as the cooperative coefficient, the extinction ratio of the switching can be improved dramatically.

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“…Especially with the advent of the electromagnetically induced transparency (EIT) effect [5,6] has created many new phenomena such as lasing without population inversion [7], enhancement of Kerr nonlinearity [8][9][10][11], ultraslow light propagation [12][13][14][15][16][17], OB and all-optical switching [18][19][20][21][22][23]. Therefore, OB and optical multistability (OM) behaviors in multilevel systems have also been studied theoretically and experimentally [24][25][26][27][28][29][30][31][32][33][34][35][36][37][38]. The advantage is that it is possible to create a large nonlinear medium inside an optical cavity at low light intensity compared to a two-level system [24].…”

Section: Introductionmentioning

confidence: 99%

External magnetic field-assisted polarization-dependent optical bistability and multistability in a degenerate two-level EIT medium

Tuan¹,

Thu²,

Doan³

et al. 2023

Laser Phys. Lett.

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In this paper, a novel degenerate two-level model is proposed to study the behavior of optical bistability (OB) and optical multistability (OM) under the effect of the magnetic field and relative phase. We show that the behavior of the OB can appear in the resonant regime by changing the strength of the external magnetic field. Especially, the result has shown that it is possible to easily convert between OB and OM by adjusting the strength of the external magnetic field or coupling field in the presence of the relative phase. In addition, the influence of the probe detuning and the atomic cooperation parameter on the OB behavior have also been considered. The studied results may be helpful for optical communication applications in optical switching processing and optimization.

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Effective control and switching of optical multistability in a three-level V-type atomic system

Cited by 12 publications

References 59 publications

Majorization effect on entropic functionals: An application to a V-type three-level atom-field interacting system

Majorization effect on entropic functionals: An application to a V-type three-level atom-field interacting system

Dynamic all-optical memory switching based on atomic optical bistable behavior in a three level Λ-type atomic system

External magnetic field-assisted polarization-dependent optical bistability and multistability in a degenerate two-level EIT medium

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