Lasing in optically induced gap states in photonic graphene

  • Milićević M
  • Bleu O
  • Solnyshkov D
  • et al.
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Abstract

We report polariton lasing in localised gap states in a honeycomb lattice of coupled micropillars. Localisation of the modes is induced by the optical potential created by the excitation beam, requiring no additional engineering of the otherwise homogeneous polariton lattice. The spatial shape of the gap states arises from the interplay of the orbital angular momentum eigenmodes of the cylindrical potential created by the excitation beam and the hexagonal symmetry of the underlying lattice. Our results provide insights into the engineering of defect states in two-dimensional lattices.

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Milićević, M., Bleu, O., Solnyshkov, D., Sagnes, I., Lemaître, A., Le Gratiet, L., … Amo, A. (2018). Lasing in optically induced gap states in photonic graphene. SciPost Physics, 5(6). https://doi.org/10.21468/scipostphys.5.6.064

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