Ultra-directional high-efficiency chiral silicon photonic circuits

@article{Fang2019UltradirectionalHC,
  title={Ultra-directional high-efficiency chiral silicon photonic circuits},
  author={Liang Fang and Haozhi Luo and Xiaoping Cao and Shuang Zheng and Xinlun Cai and Jian Wang},
  journal={Optica},
  year={2019}
}
Chiral light–matter interaction is currently revolutionizing the fundamental research on light and its applications. This interaction has traditionally faced the challenges of low directionality and efficiency based on the spin–orbit interaction of light in microscopic waveguides. It is important to exploit photonic integrated circuits to efficiently engineer photonic chiral behavior. In this paper, we propose and demonstrate ultra-directional high-efficiency chiral coupling in silicon photonic… 

Figures from this paper

Broadband silicon photonic circuits for efficient chiral photons distinguishing and splitting

The chirality of photons is very crucial for various photonic applications since it plays a dominating role in chiral light–matter interactions. On the silicon photonic platform, the strongly

Chiral Photonic Circuits for Deterministic Spin Transfer

Chiral quantum optics has attracted considerable interest in the field of quantum information science. Exploiting the spin‐polarization properties of quantum emitters and engineering rational

Broadband chiral silicon photonic circuits based on fork-type inversely tapered nanowire waveguides.

Broadband chiral coupling via the new phase synchronizing technique with fork-type inverse tapers may pave the way to develop on-chip spin photonics or polarization-based photonic integrated devices.

Active Manipulation of the Spin and Orbital Angular Momentums in a Terahertz Graphene-Based Hybrid Plasmonic Waveguide

A reconfigurable graphene-based hybrid plasmonic waveguide (GHPW) with multiple functions for on-chip AMs manipulation, which will greatly expand its applications in the THz photonic integrated circuits.

Ultrasmall broadband wavelength and polarization router based on hybrid waveguide of monolithic-LiNbO3.

The monolithic-LiNbO3 is introduced for the first time, to the best of the knowledge, to on-chip multichannel wavelength and polarization routers.

Tunable propagation of waveguide mode by incident spin states in multi-channel metal waveguide

The control of scattering light direction by incident spin state offers a desirable and novel development opportunity for the nano optics and integrated optical devices. Here, the controllable

Releasing the light field in subwavelength grating slot microring resonators for athermal and sensing applications.

Subwavelength grating slot (SWGS) microring resonators, which can effectively release light out of the silicon region for athermal and sensing applications, are proposed and demonstrated and may be useful for new releasing-light-enabled devices and applications.

Chiral-perovskite optoelectronics

Hybrid organic–inorganic perovskites (HOIPs) offer long carrier-diffusion lengths, high absorption coefficients, tunable band gaps and long spin lifetimes. The flexible crystal structure and ionic

Directional coupling of emitters into waveguides: Which property determines the directionality?

Recent experiments have demonstrated strongly directional coupling of light into the guided modes of waveguides. The applications of this effect depend on which properties of the electromagnetic

References

SHOWING 1-10 OF 38 REFERENCES

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.

Chiral quantum optics

E engineered directional photonic reservoirs could lead to the development of complex quantum networks that, for example, could simulate novel classes of quantum many-body systems.

Chiral nanophotonic waveguide interface based on spin-orbit interaction of light

It is demonstrated that the directional flow of light in a fiber can be controlled by placing a single gold nanoparticle on or near the surface of the fiber by exploiting the chiral properties of light (the spin-orbit interaction) to create a chiral waveguide coupler.

Resolving Light Handedness with an on-Chip Silicon Microdisk

The efficient manipulation of circularly polarized light with the proper handedness is key in many photonic applications. Chiral structures are capable of distinguishing photon handedness, but while

Chirality of nanophotonic waveguide with embedded quantum emitter for unidirectional spin transfer

It is demonstrated that the naturally occurring electromagnetic field chirality that arises in nanobeam waveguides leads to unidirectional photon emission from quantum dot spin states, with resultant in-plane transfer of matter-qubit information.

Polarization management for silicon photonic integrated circuits

Polarization management is very important for photonic integrated circuits (PICs) and their applications. Due to geometrical anisotropy and fabrication inaccuracies, the characteristics of the guided

Silicon nanofin grating as a miniature chirality-distinguishing beam-splitter.

A planar dielectric chirality-distinguishing beam-splitter that deflects left- and right-circularly polarized beams into different directions and utilizes an achiral architecture to realize a chiralbeam-splitting functionality.

Polarization-Controlled Tunable Directional Coupling of Surface Plasmon Polaritons

Plasmonic couplers that overcome limits in the polarization sensitivity of the coupling efficiency and in controlling the directionality of the SPPs are designed and demonstrated using polarization-sensitive apertures in a gold film.

Nanoscale chiral valley-photon interface through optical spin-orbit coupling

The valley-dependent directional coupling of light is demonstrated using a plasmonic nanowire–tungsten disulfide (WS2) layers system and it is shown that the valley pseudospin in WS2 couples to transverse optical spin of the same handedness with a directional coupling efficiency of 90 ± 1%.

Near-Field Interference for the Unidirectional Excitation of Electromagnetic Guided Modes

It is demonstrated that the near-field interference of a circularly polarized dipole results in the unidirectional excitation of guided electromagnetic modes in the near field, with no preferred far-field radiation direction.