Ultrafast exciton-polariton scattering towards the Dirac points

V. M. Kovalev, I. G. Savenko, I. V. Iorsh

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Using the Feynman-Dyson diagram technique, we study nonlinear polariton-polariton scattering in a two-dimensional micropillar-based optical superlattice with hexagonal symmetry. We demonstrate that both the emerging polariton chirality and the loop Feynman diagrams up to infinite order should be strictly accounted for in the evaluation of the self-energy of the system. Further, we explicitly show that in such a design the time of polariton scattering towards the Dirac points can be drastically decreased which can be used, for instance, in engineering novel classes of polariton lasers with substantially reduced thresholds.

Original languageEnglish
Article number105301
JournalJournal of Physics Condensed Matter
Issue number10
StatePublished - 18 Feb 2016
Externally publishedYes


  • Dirac point
  • Feynman-Dyson technique
  • exciton polaritons
  • graphene materials
  • linear dispersion


Dive into the research topics of 'Ultrafast exciton-polariton scattering towards the Dirac points'. Together they form a unique fingerprint.

Cite this