Ultrafast exciton-polariton scattering towards the Dirac points

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

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)

Abstract

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
Number of pages5
JournalJournal of physics: Condensed matter
Volume28
Issue number10
DOIs
Publication statusPublished - 16 Mar 2016
MoE publication typeA1 Journal article-refereed

Keywords

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

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