Lasing at the band edges of plasmonic lattices

This paper reports a comprehensive experimental study of silver and gold plasmonic crystal lasers. Such periodic plasmon particle systems have recently triggered large attention due to the fact that localized plasmons and collective lattice resonances conspire to give large light-matter interaction strength in narrow resonances. The authors provide a detailed report on the conditions required for lasing, and a complete analysis of the underlying plasmonic lattice band structure.