Plasmonic particle arrays enable unconventional miniature lasers by virtue of feedback by enhanced scattering, field confinement, and diffractive resonances. In a recent Optica paper we demonstrate lasing in quasi-periodic and aperiodic Galois, Thue–Morse, Fibonacci, paperfolding, Rudin–Shapiro, and randomized lattice arrangements of silver particles spanning the Fourier spectrum from discrete (period-like) to increasingly continuous (random-like). The laser output displays the rich Fourier spectrum of the lattice. Conversely, the real-space output at the laser plane is similar to speckle, yet with distinctly structured autocorrelations.
|||A. H. Schokker and A. F. Koenderink, Lasing in Quasi-Periodic and Aperiodic Plasmon Lattices, Optica 3, 686–693, (2016).||(p)reprint DOI|