Manipulating giant cross-Kerr nonlinearity at multiple frequencies in an atomic gaseous medium

Doai, Le Van; An, Nguyen Le Thuy; Khoa, Dinh Xuan; Sau, Vu Ngọc; Bang, Nguyen Huy

doi:10.1364/josab.36.002856

Cited by 12 publications

(5 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where, H and r L represent the total Hamiltonian and the relaxation term, respectively. The total Hamiltonian of the system in the interaction picture can be written as [38]:…”

Section: Theoretical Modelmentioning

confidence: 99%

“…However, recent studies have focused on multi-level atomic systems to create multiple EIT windows [25][26][27][28][29], and therefore the group velocity [30][31][32] as well as giant Kerr-nonlinearity [33][34][35][36][37] is also controlled at multiple frequency regions. Very recently, we have investigated the effect of self-Kerr nonlinearity on light group velocity in a five-level cascade system [38]. It is shown that the effect of self-Kerr nonlinearity can reduce the group index or enhance the group velocity of the probe light.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The effect of giant Kerr nonlinearity on group velocity in a six-level inverted-Y atomic system

Doai

2020

Phys. Scr.

View full text Add to dashboard Cite

We propose an analytical model to study the effect of giant Kerr nonlinearity on group velocity of probe light in a six-level inverted-Y atomic system under electromagnetically induced transparency (EIT). In this scheme, a nonlinearity of the medium is enhanced greatly around in three spectral regions corresponding to transparent windows. As a consequence, such a giant Kerr nonlinearity of the medium changes significantly group index for probe light which can obstruct light slowdown. Moreover, this model shows also that the probe propagation can switch between subluminal and superluminal modes in three EIT windows by adjusting the parameters of the signal and coupling fields. Such analytical model is not only convenient for considering the influence of laser parameters on group velocity but is also easy used to fit the experimental results.

show abstract

“…where, H and r L represent the total Hamiltonian and the relaxation term, respectively. The total Hamiltonian of the system in the interaction picture can be written as [38]:…”

Section: Theoretical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The effect of giant Kerr nonlinearity on group velocity in a six-level inverted-Y atomic system

Doai

2020

Phys. Scr.

View full text Add to dashboard Cite

show abstract

“…Electromagnetically induced transparency (EIT) is a fascinating quantum optics phenomenon that occurs when a strong coupling field interferes with a weak probe field, causing its absorption to vanish [1]. This effect has found applications in numerous domains, including optical bistability [2,3], enhanced Kerr nonlinearity [4], and optical solitons [5,6], four-wave mixing (FWM) [7,8] and so on [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Operating mode dependent energy transfer efficiency in a quantum well waveguide

Al-Dolaimy,

Kzar,

Jamil

et al. 2023

Laser Phys.

View full text Add to dashboard Cite

In this paper, we delve into the intricate interplay between optical fields with varying relative phases in a closed-loop configuration semiconductor quantum well waveguide with four distinct energy levels, and how it impacts the Fraunhofer diffraction patterns obtained via four-wave mixing. By harnessing a strong control field, a standing wave driving field, and two weak probe and signal fields, we drive the waveguide to generate these patterns with maximum efficiency. To achieve this, we consider three distinct light-matter interaction scenarios, where the system is first set up in either a lower electromagnetically induced transparency or a coherent population trapping state, followed by a final state that enables electron spin coherence (ESC) induction. Our results reveal that the efficiency of Fraunhofer diffraction in the quantum well waveguide can be enhanced significantly under specific parameter regimes via the spin coherence effect. Further investigation of the light-matter interaction in the ESC zone, where only one of the control fields is a standing wave field, demonstrates that spin coherence facilitates more efficient transfer of energy from the probe light to the third and fourth orders, highlighting its crucial role in shaping the diffraction patterns.

show abstract

“…Additionally, the idea of quantum interference is applied to a number of applications, such as lasing without inversion [2], slow light propagation [3], atomic grating [4,5], optical bistability [6] and very effective nonlinear optics schemes [7][8][9]. Examples of nonlinear optical phenomena based on quantum interference are multi-wave mixing processes in the ultraslow propagation regime [7,10], increased nonlinearity [11,12], and optical solitons [13]. In particular, it is anticipated that the multi-wave mixing process will find use in a variety of domains, including the production * Author to whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

Spatial dependent of the new generated light via Fano-interference in a quantum well nanostructure

Li¹,

Zhao²

2023

Laser Phys. Lett.

View full text Add to dashboard Cite

In this letter, we will study the spatially dependent of the new generated light via Fano interference in a quantum well nanostructure. We will show analytically that by Fano-type interference the new light can be generated when the weak probe light propagates through the medium. We will study the efficiency of the new generated light for different strengths of the Fano-interference. We will also consider the condition when the probe light becomes optical vortex light which can carry the orbital angular momentum (OAM). By controlling the OAM of light, we will study the spatial dependence of the absorption spectrum of the generated light. Our proposed model may have potential application in the future quantum information science based on semiconductor quantum well nanostructures.

show abstract

Manipulating giant cross-Kerr nonlinearity at multiple frequencies in an atomic gaseous medium

Cited by 12 publications

References 29 publications

The effect of giant Kerr nonlinearity on group velocity in a six-level inverted-Y atomic system

The effect of giant Kerr nonlinearity on group velocity in a six-level inverted-Y atomic system

Operating mode dependent energy transfer efficiency in a quantum well waveguide

Spatial dependent of the new generated light via Fano-interference in a quantum well nanostructure

Contact Info

Product

Resources

About