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Control and dynamic competition of bright and dark lasing states in active nanoplasmonic metamaterials

Citation:

Wuestner S, Hamm JM, Pusch A, Renn F, Tsakmakidis KL, Hess O. Control and dynamic competition of bright and dark lasing states in active nanoplasmonic metamaterials. Physical Review B - Condensed Matter and Materials Physics [Internet]. 2012;85.

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 nanofishnet 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. © 2012 American Physical Society.

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