Optimised photonic crystal waveguide for chiral light–matter interactions

@article{Lang2016OptimisedPC,
  title={Optimised photonic crystal waveguide for chiral light–matter interactions},
  author={Ben Lang and Ruth Oulton and Daryl M. Beggs},
  journal={Journal of Optics},
  year={2016},
  volume={19}
}
We present slow-light photonic crystal waveguide designs that provide a ×8.6 improvement of the local density of optical states at a fully chiral point over previous designs. 

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References

SHOWING 1-10 OF 28 REFERENCES

Efficient slow-light coupling in a photonic crystal waveguide without transition region.

It is shown that the coupling into a slow mode that appears near an inflection point in the band structure of a photonic crystal waveguide can be essentially perfect without any transition region thanks to an evanescent mode in the slow medium.

Dispersion engineered slow light in photonic crystals: a comparison

We review the different types of dispersion engineered photonic crystal waveguides that have been developed for slow light applications. We introduce the group index bandwidth product (GBP) and the

Engineering chiral light--matter interaction in photonic crystal waveguides with slow light

We design photonic crystal waveguides with efficient chiral light--matter interfaces that can be integrated with solid-state quantum emitters. By using glide-plane-symmetric waveguides, we show that

Engineering chiral light–matter interaction in photonic crystal waveguides with slow light

We design photonic crystal waveguides with efficient chiral light–matter interfaces that can be integrated with solid-state quantum emitters. By using glide-plane-symmetric waveguides, we show that

Polarization Engineering in Photonic Crystal Waveguides for Spin-Photon Entanglers.

It is demonstrated that the light-matter interaction can be asymmetric, leading to unidirectional emission and a deterministic entangled photon source, and understanding the phase associated with both the LDOS and the QD spin is essential for a range of devices that can be realized with a QD in a PCW.

Polarization tailored light driven directional optical nanobeacon.

All-optical control of the emission directivity of a dipole-like nanoparticle with spinning dipole moment sitting on the interface to an optical denser medium is experimentally demonstrated and the polarization dependent coupling to a planar two-dimensional dielectric waveguide is investigated.

Deterministic photon-emitter coupling in chiral photonic circuits.

It is shown that the helicity of the optical transition of a quantum emitter determines the direction of single-photon emission in a specially engineered photonic-crystal waveguide.

Time-reversal constraint limits unidirectional photon emission in slow-light photonic crystals

  • B. LangD. BeggsR. Oulton
  • Physics
    Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
  • 2016
This article explores the transition from travelling to standing waves for two different photonic crystal waveguide designs and finds that time-reversal symmetry and the reciprocal nature of light places constraints on using C-points in the slow-light regime.

Beyond the effective index method: improved accuracy for 2D simulations of photonic crystal waveguides

Simulation of photonic structures is a necessary step in the design of devices with tailored optical properties. As 3D simulations are time-intensive, the effective index method (EIM) is widely used

Measurement of bound states in the continuum by a detector embedded in a photonic crystal

The ability to probe the field intensity inside the photonic crystal and thereby to directly measure BICs represents a milestone in the development of integrated opto-electronic devices based on BICS.