Ultrafast exciton-polariton scattering towards the Dirac points

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Tutkijat

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

Organisaatiot

  • Russian Academy of Sciences
  • Novosibirsk State Technical University
  • St. Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO)
  • Australian National University

Kuvaus

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.

Yksityiskohdat

AlkuperäiskieliEnglanti
Artikkeli105301
Sivumäärä5
JulkaisuJournal of physics: Condensed matter
Vuosikerta28
Numero10
TilaJulkaistu - 16 maaliskuuta 2016
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

ID: 9172991