Lasing at the K-points of a honeycomb plasmonic lattice
arXiv:1810.04838 · doi:10.1103/PhysRevLett.122.013901
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 $\Kp$-points of the reciprocal space. We experimentally demonstrate lasing at the $\Kp$-points \changed{that is based on plasmonic lattice modes and two-dimensional feedback}. By comparing polarization properties to \changed{-matrix} simulations, we identify the lasing mode as one of the singlets with an energy minimum at the $\Kp$-point enabling feedback. Our results offer prospects for studies of topological lasing in radiatively coupled systems.
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- Analogs of quantum Hall effect edge states in photonic crystals
- Dirac-like plasmons in honeycomb lattices of metallic nanoparticles
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