2018/06/30 by M. Milićević, Marijana Milićević, O. Bleu +12 · 11 citations
Engineering · Physics and Astronomy · #Angular momentum #Condensed matter physics #Excitation #Graphene #Hexagonal lattice #Laser #Lasing threshold #Lattice (music) #Materials science #Optics #Optoelectronics #Photonics #Physics #Plasmonic and Surface Plasmon Research #Polariton #Quantum mechanics #Strong Light-Matter Interactions #Thermal Radiation and Cooling Technologies #cond-mat.mes-hall #cond-mat.quant-gas #physics.optics
paper · pdf · doi:10.21468/scipostphys.5.6.064
published in SciPost Physics 5(6) (SciPost.org) · 18 pages, 8 figures, submitted to SciPost (rev)
arxiv created 2018/11/12 · arxiv updated 2018/12/19 · openalex publication_date 2018/12/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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.