Control and Dynamic Competition of Bright and Dark Lasing States in Active Nanoplasmonic Metamaterials

Abstract

Active nanoplasmonic metamaterials support bright and dark modes that compete for gain. Using a Maxwell-Bloch approach incorporating Langevin noise we study the lasing dynamics in an active nano-fishnet structure. We report that lasing of the bright negative-index mode is possible if the higher-Q dark mode is discriminated by gain, spatially or spectrally. The nonlinear competition during the transient phase is followed by steady-state emission where bright and dark modes can coexist. We analyze the influence of pump intensity and polarization and explore methods for mode control.

5 pages, 4 figures

References in corpus (6)

• Past Achievements and Future Challenges in 3D Photonic Metamaterials
• Overcoming losses with gain in a negative refractive index metamaterial
• Self-consistent calculations of loss compensated fishnet metamaterials
• Theory of fishnet negative-index optical metamaterials
• Theory of light amplification in active fishnet metamaterials
• Finite-difference time-domain formulation of stochastic noise in macroscopic atomic systems

Cited by in corpus (6)

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• Resonant plane waves in metamaterials with dipoles and quadrupoles coupled with quantum system