Controllable optical switching in a closed-loop three-level lambda system

Dong, Hoang Minh; Nguyen, Huy Bang

doi:10.1088/1402-4896/ab2a7d

Cited by 15 publications

(6 citation statements)

References 47 publications

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“…The microwave field is used as a controllable tool to tune the SKNL coefficient of the Δ system. The previous works [8,23,24] show the phase-sensitive effect on the Δ system, but those didn't explore the effect of f, Ω μ on linear and nonlinear responses separately. This theoretical study can give new insight into the Δ system from the experimental perpetual point of view.…”

Section: Resultsmentioning

confidence: 99%

A giant self-Kerr nonlinearity using phase-sensitive excitation in a closed three-level atomic system

Ayyappan¹,

Beena²

2022

Phys. Scr.

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A third order nonlinear response is investigated theoretically using a closed lambda system. In this scheme, a pair of optical fields and a microwave field connect three hyper-fine levels in a cyclic fashion rendering the atomic response sensitive to the relative phase of all three fields. Changing the relative phase we can suppress the linear response of the probe field and enhance its third order self-Kerr nonlinear response using the underlying electromagnetically induced transparency (EIT) effect. The resultant giant self-Kerr nonlinear response is comparable to or exceeding that found in atomic systems at room temperature. Most importantly we show that the self-Kerr nonlinear response at an optical frequency can be controlled using the phase and amplitude of a frequency separated microwave field.

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Section: Resultsmentioning

confidence: 99%

A giant self-Kerr nonlinearity using phase-sensitive excitation in a closed three-level atomic system

Ayyappan¹,

Beena²

2022

Phys. Scr.

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“…Recently, there has been a significant trend in the research interest of scientists to multilevel atomic systems related to quantum coherence phenomena [4]. 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].…”

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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“…Due to electromagnetically induced transparency (EIT) [1] promising applications in slow light [2], optical switching * Author to whom any correspondence should be addressed. [3,4], optical storage [5], enhanced Kerr-nonlinearity [6,7], four-wave mixing (FWM) [8,9], optical soliton [10,11], and others [12][13][14][15] the EIT opens a new way to manipulate the optical properties of atomic medium via light, has been extensively studied. By applying a standing-wave coupling field to atoms, an all-optical device known as an electromagnetically induced grating (EIG) based on EIT can be created [16].…”

Section: Introductionmentioning

confidence: 99%

Electromagnetically induced grating in azimuthal dependent three-level quantum dot system

Aslla-Quispe,

Camacho-Orbegoso,

Farfán-Latorre

et al. 2023

Laser Phys.

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The Fraunhofer diffraction pattern in a three-level quantum dot nanostructure is examined. A probe light, a two-dimensional standing wave field, and a weak signal light are the three optical laser fields that the graphene quantum dot interacts with them. The Fraunhofer diffraction pattern of the probe transmitted light has been addressed under two different coupling situations, including when the weak signal light into an optical vortex beam and a plane wave. The Fraunhofer diffraction pattern becomes symmetric for plane wave coupling light, and the diffracted light can be adjusted by the relative phase between applied lights. However, using the orbital angular momentum of light, it is possible to obtain an asymmetric diffraction pattern for optical light. It has been discovered that in both instances, phase modulation of the probe light’s transmission function allows the probe energy to move from zero order to higher orders.

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Controllable optical switching in a closed-loop three-level lambda system

Cited by 15 publications

References 47 publications

A giant self-Kerr nonlinearity using phase-sensitive excitation in a closed three-level atomic system

A giant self-Kerr nonlinearity using phase-sensitive excitation in a closed three-level atomic system

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

Electromagnetically induced grating in azimuthal dependent three-level quantum dot system

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