Array of nanoparticles coupling with quantum-dot: Lattice plasmon quantum features

Salmanogli, Ahmad; Geçim, H. Selçuk

doi:10.1016/j.physe.2018.03.006

Cited by 8 publications

(16 citation statements)

References 17 publications

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“…When these components are close enough, the interaction between excitons from the QD and the surface plasmons significantly influences the optical properties of the system and leads to several interesting phenomena, such as Fano resonances [6][7][8] and plasmonic meta-resonances [9,10]. To date, there have been several quantum and semiclassical studies of the interaction between dipole emitters and metallic nanoparticles [11][12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Optical response of a topological-insulator–quantum-dot hybrid interacting with a probe electric field

2020

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We study the interaction between a topological insulator nanoparticle and a quantum dot subject to an applied electric field. The electromagnetic response of the topological insulator is derived from axion electrodynamics in the quasistatic approximation. Localized modes are quantized in terms of dipolar bosonic modes, which couples dipolarly to the quantum dot. Hence, we treat the hybrid as a two-level system interacting with a single bosonic mode, where the coupling strength encodes the information concerning the nontrivial topology of the nanoparticle. The interaction of the hybrid with the environment is implemented through the coupling with a continuum reservoir of radiative output modes and a reservoir of phonon modes. In particular, we use the method of Zubarev's Green functions to derive an expression for the optical absorption spectrum of the system. We apply our results to a realistic system which consists of a topological insulator nanoparticle made of TlBiSe2 interacting with a cadmium selenide quantum dot, both immersed in a polymer layer such as poly(methyl methacrylate). The optical absorption spectrum exhibits Fano resonances with a line shape that strongly depends on the polarization of the electric field as well as on the topological magnetoelectric polarizability θ. Our results and methods can also be applied to nontopological magnetoelectric materials such as Cr2O3.

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Section: Introductionmentioning

confidence: 99%

Optical response of a topological-insulator–quantum-dot hybrid interacting with a probe electric field

2020

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“…In fact, γ 20 and γ 21 are the natural life-time of related energy levels and determine the dipole momentum of transition rates (µ = √ (3πћε 0 c 3 γ /ω 3 )). Therefore, using the system Hamiltonian and the related dynamics equation of motions [14,15] and by substituting a 1 =(ε√κ 1 -ig 20 (r)σ -1 )/(iΔ 20 +0. The related decay rates are concluded as:…”

Section: Theoretical and Backgroundsmentioning

confidence: 99%

“…Therefore, nonlinearity is a key factor to produce entangled states. Because of that fact, it has been recently shown that plasmonic nanoparticles (NPs) have an ability to induce the non-classicality correlation [14,15]. In contrast to photons, Plasmon resonance has a unique ability, such that it can be localized at a nanoscale.…”

Section: Introductionmentioning

confidence: 99%

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Quantum Dot Transition Rate Modifying by Coupling to Lattice Plasmon

HATEM

Salmanogli

Geçim

2023

Preprint

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In this study, a plasmonic system coupled to a quantum dot is defined to generate the entanglement between two non-simultaneous emitted output modes. The quantum dot with three energy levels creates two different transition rates by which non-simultaneous photons are emitted. Thus, it seems that the entanglement between two emitted modes is forbidden. However, the simulation results show the entanglement between the output modes. It is because the original transition rates of the quantum dot are modified due to the lattice plasmon coupling effect. It means that the effective transition rate affected by the lattice plasmon plays the key role. The lattice plasmon coupling to quantum dot at some locations leads to a simultaneous transition by which the entanglement between output modes is established. This unique behavior is theoretically discussed and the results shows that using lattice plasmon can change the transition rates by which the two emitted modes become entangled.

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“…Undoubtedly, the technological trend would replace the classical sensors by the quantum ones because the quantum-based sensors are able to induce some important advantages to improve the sensory performance such as resolution enhancement via quantum imaging [1,2], quantum performance effect on sensitivity improving in quantum radar [3,4], and so on. Actually, quantum-based sensors produce nonclassicality and entanglement in various approaches [5][6][7] and utilized these novel phenomena to improve performance in different applications such as plasmonic [8,9], Raman spectroscopy [10], and other cases. Generally speaking, entanglement occurs when two photons are generated to interact in such a way that their properties are linked together [11,12].…”

Section: Introductionmentioning

confidence: 99%

Optical and Microcavity Modes Entanglement by Means of Plasmonic Opto-Mechanical System

Salmanogli¹,

Geçim

2020

IEEE J. Select. Topics Quantum Electron.

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Entanglement between optical mode and microwave mode is a critical issue in illumination systems. Traditionally, optomechanical systems are applied to couple the optical mode to microcavity modes. However, due to some restrictions of this system such as sensitivity to the thermal noise at room temperature, a novel optoelectronic system is designed in this study to fix the recent system problems. Unlike recent optomechanical systems, the optical modes are directly coupled to the microwave cavity through the optoelectronic elements with no need mechanical system. The main objective of this work is to generate the entangled modes at room temperature. For this purpose, we theoretically analyze the dynamics of motion of the optoelectronic system with the Heisenberg-Langevin equations, from which one can calculate the coupling between optical and microcavity modes. The most important feature of this system is the coupling between optical mode and microwave cavity mode, which is done using a photodetector and a Varactor diode. Hence, by controlling the photodetector current (photocurrent), which is dependent on the optical cavity incidence wave and the Varactor diode biased, which is the function of the photocurrent, the coupling between the optical and microcavity mode is fully done. The modeling results show that the coupled modes are entangled at the room temperature with no need to any mechanical parts.

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Array of nanoparticles coupling with quantum-dot: Lattice plasmon quantum features

Cited by 8 publications

References 17 publications

Optical response of a topological-insulator–quantum-dot hybrid interacting with a probe electric field

Optical response of a topological-insulator–quantum-dot hybrid interacting with a probe electric field

Quantum Dot Transition Rate Modifying by Coupling to Lattice Plasmon

Optical and Microcavity Modes Entanglement by Means of Plasmonic Opto-Mechanical System

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