Graphene as a source of entangled plasmons

@article{Sun2022GrapheneAA,
  title={Graphene as a source of entangled plasmons},
  author={Zhiyuan Sun and Dmitri N. Basov and Michael M. Fogler},
  journal={Physical Review Research},
  year={2022}
}
We analyze nonlinear optics schemes for generating pairs of quantum entangled plasmons in the terahertz-infrared range in graphene. We predict that high plasmonic field concentration and strong optical nonlinearity of monolayer graphene enables pair-generation rates much higher than those of conventional photonic sources. The first scheme we study is spontaneous parametric down conversion in a graphene nanoribbon. In this second-order nonlinear process a plasmon excited by an external pump splits… 
1 Citations

Nonlinear quantum logic with colliding graphene plasmons

Graphene has emerged as a promising platform to bring nonlinear quantum optics to the nanoscale, where a large intrinsic optical nonlinearity enables long-lived and actively tunable plasmon

References

SHOWING 1-10 OF 226 REFERENCES

Fundamental limits to graphene plasmonics

TLDR
The fundamental limits to plasmon damping in graphene are determined using nanoscale infrared imaging at cryogenic temperatures, and pl asmon polaritons are observed to propagate over 10 micrometres in high-mobility encapsulated graphene.

Second-order quantum nonlinear optical processes in single graphene nanostructures and arrays

Intense efforts have been made in recent years to realize nonlinear optical interactions at the single-photon level. Much of this work has focused on achieving strong third-order nonlinearities, such

Nonequilibrium plasmons with gain in graphene

Graphene supports strongly confined transverse-magnetic sheet plasmons whose spectral characteristics depend on the energetic distribution of Dirac particles. The question arises whether plasmons can

Broadband gate-tunable terahertz plasmons in graphene heterostructures

Graphene, a unique two-dimensional material comprising carbon in a honeycomb lattice1, has brought breakthroughs across electronics, mechanics and thermal transport, driven by the quasiparticle Dirac

Gate-tuning of graphene plasmons revealed by infrared nano-imaging

TLDR
Using infrared nano-imaging, it is shown that common graphene/SiO2/Si back-gated structures support propagating surface plasmons and changes both the amplitude and the wavelength are altered by varying the gate voltage.

Laser-driven parametric instability and generation of entangled photon-plasmon states in graphene

We show that a strong infrared laser beam obliquely incident on graphene can experience a parametric instability with respect to decay into lower-frequency (idler) photons and THz surface plasmons.

Plasmon-assisted high-harmonic generation in graphene

TLDR
These results support the strong potential of nanostructured graphene as a robust, electrically tunable platform for high-harmonic generation and demonstrate through rigorous time-domain simulations that the synergistic combination of strong plasmonic near-field enhancement and a pronounced intrinsic nonlinearity result in efficient broadband high- Harmonic generation within a single material.

Plasmon Generation through Electron Tunneling in Graphene

The short wavelength of graphene plasmons relative to the light wavelength makes them attractive for applications in optoelectronics and sensing. However, this property limits their coupling to

Optical nano-imaging of gate-tunable graphene plasmons

TLDR
A successful alliance between nanoelectronics and nano-optics enables the development of active subwavelength-scale optics and a plethora of nano-optoelectronic devices and functionalities, such as tunable metamaterials, nanoscale optical processing, and strongly enhanced light–matter interactions for quantum devices and biosensing applications.

Active control of micrometer plasmon propagation in suspended graphene

Due to the two-dimensional character of graphene, the plasmons sustained by this material have been invariably studied in supported samples so far. The substrate provides stability for graphene but
...