Data/hora: 16/06/2024 03:37:20

Provedor de dados: | 5
País: | France
Título: | Effect of plasmonic mode on plasmon-based lasers
Autores: | Dridi, Montacer; Colas, Florent; Compere, Chantal.
Data: | 2018-12
Ano: | 2018
Resumo: | For the last few years, plasmon-based lasers have been investigated theoretically and experimentally. Several configurations have been reported. They are composed of quantum emitters coupled to a plasmonic structure. In this paper, we investigate the effect of the plasmon mode on the far-field and near-field characteristics of a nanolaser composed by a periodic array of metallic nanoparticles covered by gain materials under optical pumping. Two configurations were investigated. The first structure supported a localized surface plasmon (LSP) mode, while the second a surface lattice plasmon (SLP) mode. This theoretical work relies on semi-quantum calculations based on a four-level gain molecule and a time-domain approach. We demonstrated that lasing in a SLP mode requires a lower concentration of quantum emitters and generates a higher far-field emission with a lower threshold than lasing in a LSP mode. At nanoscale, near-field enhancement at the emission wavelength and above the threshold is 2 orders of magnitude higher with the SLP than the LSP mode. Our results with a general character show that designing a plasmon-based laser that sustains the SLP mode will result in a better lasing efficiency than with a LSP mode. (C) 2018 Optical Society of America
Tipo: | Text
Idioma: | Inglês

Identificador:

https://archimer.ifremer.fr/doc/00473/58490/61054.pdf

DOI:10.1364/JOSAB.35.003110

https://archimer.ifremer.fr/doc/00473/58490/

Editor: | Optical Soc Amer
Formato: | application/pdf
Fonte: | Journal Of The Optical Society Of America B-optical Physics (0740-3224) (Optical Soc Amer), 2018-12 , Vol. 35 , N. 12 , P. 3110-3115

Fonte:

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