Polariton condensation in photonic crystals with high molecular orientation

D. V. Karpov*, I. G. Savenko

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


We study Frenkel exciton-polariton Bose-Einstein condensation in a two-dimensional defect-free triangular photonic crystal with an organic semiconductor active medium containing bound excitons with dipole moments oriented perpendicular to the layers. We find photonic Bloch modes of the structure and consider their strong coupling regime with the excitonic component. Using the Gross-Pitaevskii equation for exciton polaritons and the Boltzmann equation for the external exciton reservoir, we demonstrate the formation of condensate at the points in reciprocal space where photon group velocity equals zero. Further, we demonstrate condensation at non-zero momentum states for transverse magnetic-polarized photons in the case of a system with incoherent pumping, and show that the condensation threshold varies for different points in the reciprocal space, controlled by detuning.

Original languageEnglish
Article number013037
JournalNew Journal of Physics
Issue number1
StatePublished - Jan 2018
Externally publishedYes


  • Bose-Einstein condensate
  • exciton polaritons
  • organic semiconductors
  • photonic crystals
  • photonics


Dive into the research topics of 'Polariton condensation in photonic crystals with high molecular orientation'. Together they form a unique fingerprint.

Cite this