Lasing at K Points of a Honeycomb Plasmonic Lattice

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2019-01-02
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Mcode
Degree programme
Language
en
Pages
1-6
Series
Physical Review Letters, Volume 122, issue 1
Abstract
We study lasing at the high-symmetry points of the Brillouin zone in a honeycomb plasmonic lattice. We use symmetry arguments to define singlet and doublet modes at the K points of the reciprocal space. We experimentally demonstrate lasing at the K points that is based on plasmonic lattice modes and two-dimensional feedback. By comparing polarization properties to T-matrix simulations, we identify the lasing mode as one of the singlets with an energy minimum at the K point enabling feedback. Our results offer prospects for studies of topological lasing in radiatively coupled systems.
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Citation
Guo , R , Nečada , M , Hakala , T K , Väkeväinen , A I & Törmä , P 2019 , ' Lasing at K Points of a Honeycomb Plasmonic Lattice ' , Physical Review Letters , vol. 122 , no. 1 , 013901 , pp. 1-6 . https://doi.org/10.1103/PhysRevLett.122.013901