Spontaneous decay rate and Casimir–Polder interaction of a two-level atom in a Bragg-reflector cylindrical structure

Chinh, Nguyen Dung; Hien, Tran Minh

doi:10.1088/1361-6455/ab2362

Cited by 4 publications

(2 citation statements)

References 49 publications

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“…where J n (ξ) stands for the first-type Bessel function, For a cylindrical system with a perfectly reflecting wall, standard-mode expansion applies and the h integrals in the Green's tensor can be carried out in closed form [35]. The Green's tensor will then contain an infinite sum over the roots of the Bessel functions.…”

Section: Basic Formulasmentioning

confidence: 99%

“…They showed that there exists a substantial radiative exchange between distant atoms mediated by guided modes of the nanofiber. Spontaneous decay and van der Waals interaction of an excited atom located on the axis of a cylindrical structure has been discussed in [35]. Dispersion interaction between two atoms being off axis has been discussed in [36].…”

Section: Introductionmentioning

confidence: 99%

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Influence of cylindrical waveguide having a concentric photonic band-gap wall on the interatomic resonance energy transfer

Phuoc¹,

Chinh²,

Hien³

2021

J. Phys. B: At. Mol. Opt. Phys.

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We consider how the rate of resonance energy transfer (RET) between an excited atom and a ground-state one is affected by the presence of a cylindrical photonic band-gap waveguide by using the Green's function approach. Both positions inside and outside the wall and three types of atomic dipole moment orientations, namely radial, azimuthal and axial orientations, are examined. Results for the photonic band-gap structure and those for the perfectly reflecting one are compared. Differences between the two are found to be significant near the surfaces. Frequency dependence of the rate, which is beyond the perfectly reflecting wall model, is investigated. It is shown that when the waveguide is located in between two atoms which have transition dipole moments parallel with the axis and transition frequency falling within the gap region, the RET is suppressed.

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Section: Basic Formulasmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of cylindrical waveguide having a concentric photonic band-gap wall on the interatomic resonance energy transfer

Phuoc¹,

Chinh²,

Hien³

2021

J. Phys. B: At. Mol. Opt. Phys.

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Optical properties of cylindrical topological photonic crystal heterostructures

Roshan Entezar

2024

Phys. Scr.

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This paper uses a modified transfer matrix method to investigate the optical properties of a cylindrical topological photonic crystal heterostructure composed of two cylindrical photonic crystals. Topological photonic crystals are novel structures with topological edge states capable of field confinement and robust propagation. Numerical results showed that when the sum of the phases of the reflection coefficients of the two cylindrical photonic crystals is zero, a topological edge state occurs inside their overlapping band gaps. In the linear regime, the peak frequency of the topological edge states undergoes a redshift as the incidence angle increases. An increase in the incidence angle leads to a decrease (increase) in the Full width at half maximum of the E-polarized (H-polarized) topological edge states. As the incidence angle increases, the frequency separation between the E-polarized and H-polarized topological edge states increases, causing the cylindrical heterostructure to work as a polarizer. The performance of the cylindrical topological photonic crystal heterostructure as a polarizer is evaluated in the linear and nonlinear regimes. We showed that the peak frequency of the topological edge states undergoes a redshift irrespective of their polarization state as the intensity of the input light increases. We found that the structure has a good performance in the nonlinear regime due to the higher displacement in E-polarized topological edge states compared to H-polarized topological edge states. The findings of this paper might be beneficial in the construction of polarization-maintaining optical fiber, which has specific applications in telecommunications, fiber optic sensing, interferometry, and quantum key distribution.

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Resonance Energy Transfer Rate in the Presence of a Cylindrical Photonic Band-gap Structure

Phuoc

Chinh

2019

Opt. Spectrosc.

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Spontaneous decay rate and Casimir–Polder interaction of a two-level atom in a Bragg-reflector cylindrical structure

Cited by 4 publications

References 49 publications

Influence of cylindrical waveguide having a concentric photonic band-gap wall on the interatomic resonance energy transfer

Influence of cylindrical waveguide having a concentric photonic band-gap wall on the interatomic resonance energy transfer

Optical properties of cylindrical topological photonic crystal heterostructures

Resonance Energy Transfer Rate in the Presence of a Cylindrical Photonic Band-gap Structure

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