Topologically protected second harmonic generation via doubly resonant high-order photonic modes

@article{Chen2021TopologicallyPS,
  title={Topologically protected second harmonic generation via doubly resonant high-order photonic modes},
  author={Yafeng Chen and Zhihao Lan and Jensen Li and Jie Zhu},
  journal={Physical Review B},
  year={2021}
}
Topology-driven nonlinear light-matter effects open up new paradigms for both topological photonics and nonlinear optics. Here, we propose to achieve high-efficiency second harmonic generation in a second-order photonic topological insulator. Such a system hosts highly localized topological corner states with large quality factors for both fundamental and second harmonic waves, which could be matched perfectly in frequency by simply tuning the structural parameters. Through the nonlinear… 

Figures from this paper

A brief review of topological photonics in one, two, and three dimensions

Inverse-Designed Metaphotonics for Hypersensitive Detection

Controlling the flow of broadband electromagnetic energy at the nanoscale remains a critical challenge in optoelectronics. Surface plasmon polaritons (or plasmons) provide subwavelength localization

References

SHOWING 1-10 OF 63 REFERENCES

Nonlinear frequency up-conversion via double topological edge modes.

TLDR
Numerical simulations show that femtosecond pulses can excite double topological edge modes through optical tunneling in band gaps, leading to a large nonlinear response.

Third-Harmonic Generation in Photonic Topological Metasurfaces.

TLDR
Topology-driven tunable localization of the generated harmonic fields are demonstrated and the pseudospin-dependent unidirectional waveguiding of the edge states bypassing sharp corners are mapped.

Second-harmonic generation via double topological valley-Hall kink modes in all-dielectric photonic crystals

Nonlinear topological photonics, which explores topics common to the fields of topological phases and nonlinear optics, is expected to open up a new paradigm in topological photonics. Here, we

Nonlinear one-way edge-mode interactions for frequency mixing in topological photonic crystals

Topological photonics aims to utilize topological photonic bands and corresponding edge modes to implement robust light manipulation, which can be readily achieved in the linear regime of

Nonlinear Control of Electromagnetic Topological Edge States.

TLDR
Exper experimentally nonlinearity-induced spectral tuning of electromagnetic topological edge states in arrays of coupled nonlinear resonators in the pump-probe regime is realized.

Doubly resonant χ(2) nonlinear photonic crystal cavity based on a bound state in the continuum

Photonic nanostructures simultaneously maximizing spectral and spatial overlap between fundamental and second-harmonic confined modes are highly desirable for enhancing second-order nonlinear effects

Higher-order photonic topological states in surface-wave photonic crystals

Photonic topological states have revolutionized our understanding on the propagation and scattering of light. Recent discovery of higher-order photonic topological insulators opens an emergent

Two-dimensional topological photonics

Originating from the studies of two-dimensional condensed-matter states, the concept of topological order has recently been expanded to other fields of physics and engineering, particularly optics

Nonlinear topological photonics

Rapidly growing demands for fast information processing have launched a race for creating compact and highly efficient optical devices that can reliably transmit signals without losses. Recently

Doubly resonant second-harmonic generation of a vortex beam from a bound state in the continuum

Second harmonic generation in nonlinear materials can be greatly enhanced by realizing doubly-resonant cavities with high quality factors. However, fulfilling such doubly resonant condition in
...