Quasinormal Mode Theory of Chiral Power Flow from Linearly Polarized Dipole Emitters Coupled to Index-Modulated Microring Resonators Close to an Exceptional Point

@article{Ren2022QuasinormalMT,
  title={Quasinormal Mode Theory of Chiral Power Flow from Linearly Polarized Dipole Emitters Coupled to Index-Modulated Microring Resonators Close to an Exceptional Point},
  author={Juanjuan Ren and Sebastian Franke and Stephen Hughes},
  journal={ACS Photonics},
  year={2022}
}
Chiral emission can be achieved from a circularly polarized dipole emitter in a nanophotonic structure that possess special polarization properties such as a polarization singularity, namely with right or left circularly polarization (C-points). Recently, Chen et. al. [Nature Physics 16, 571 (2020)] demonstrated the surprising result of chiral radiation from a linearly-polarized (LP) dipole emitter, and argued that this effect is caused by a decoupling with the underlying eigenmodes of a non… 

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References

SHOWING 1-10 OF 106 REFERENCES
Chiral Emission into Nanophotonic Resonators
Chiral emission, where the handedness of a transition dipole determines the direction in which a photon is emitted, has recently been observed from atoms and quantum dots coupled to nanophotonic
Cooperative interactions between nano-antennas in a high-Q cavity for unidirectional light sources.
TLDR
This work introduces the notion of 'phased array' antenna physics into plasmonic-photonic resonators and predicts that one may construct large local density of states (LDOS) enhancements exceeding those given by a single antenna, which are 'chiral' in the sense of correlating with the unidirectional injection of fluorescence into the cavity.
Chiral cavity quantum electrodynamics with coupled nanophotonic structures
Up to now it remains challenging to couple photons from a circularly polarized emitter into a photonic structure to simultaneously realize strong photon-emitter interaction and unidirectional
Theory of the spontaneous optical emission of nanosize photonic and plasmon resonators.
TLDR
A self-consistent electromagnetic theory of the coupling between dipole emitters and dissipative nanoresonators that predicts that a spectral detuning between the emitter and the resonance does not necessarily result in a Lorentzian response in the presence of dissipation.
Quantized quasinormal-mode description of nonlinear cavity-QED effects from coupled resonators with a Fano-like resonance
We employ a recently developed quantization scheme for quasinormal modes (QNMs) to study a nonperturbative open cavity-QED system consisting of a hybrid metal-dielectric resonator coupled to a
Revealing the missing dimension at an exceptional point
The radiation of electromagnetic and mechanical waves depends not only on the intrinsic properties of the emitter but also on the surrounding environment. This principle has laid the foundation for
Chiral modes and directional lasing at exceptional points
TLDR
It is shown how to impose a strong chirality and a switchable direction of light propagation in an optical system by steering it to an exceptional point (EP)—a degeneracy universally occurring in all open physical systems when two eigenvalues and the corresponding eigenstates coalesce.
Nanophotonic control of circular dipole emission.
TLDR
The measurements demonstrate the possibility of coupling the spin to photonic pathway and show that, depending on the combination of the local helicity of the mode and the dipole helicity, circular dipoles can couple to left- or rightwards propagating modes with a near-unity directionality.
Quantized quasinormal-mode theory of coupled lossy and amplifying resonators
In the presence of arbitrary three-dimensional linear media with material loss and amplification, we present an electromagnetic field quantization scheme for quasinormal modes (QNMs), extending
Quasinormal mode approach to modelling light- emission and propagation in nanoplasmonics
We describe a powerful and intuitive theoretical technique for modeling light–matter interactions in classical and quantum nanoplasmonics. Our approach uses a quasinormal mode (QNM) expansion of the
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