Nonlinear Optical Properties of Tungsten Lead-Pyrophosphate Glasses Containing Metallic Copper Nanoparticles
Nenhuma Miniatura disponível
Data
2013-07-08
Autores
Manzani, Danilo [UNESP]
Almeida, Juliana M.P.
Napoli, Mariana [UNESP]
De Boni, Leonardo
Nalin, Marcelo [UNESP]
Afonso, Conrado R.M.
Ribeiro, Sidney J.L. [UNESP]
Mendonça, Cleber R.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
We have prepared heavy metal oxide glasses containing metallic copper nanoparticles with promising nonlinear optical properties which were determined by Z-scan and pump-probe measurements using femtosecond laser pulses. For the wavelengths within the plasmon band, we have observed saturable absorption and response times of 2.3 ps. For the other regions of the spectrum, reverse saturable absorption and lifetimes shorter than 200 fs were verified. The nonlinear refractive index is about 2.0 × 10-19 m2/W from visible to telecom region, thus presenting an enhancement effect at wavelengths near the plasmon and Cu+2 d-d band. © 2013 Springer Science+Business Media New York.
Descrição
Palavras-chave
Copper nanoparticles, Lead pyrophosphate glasses, Nonlinear optical properties, Surface plasmon resonance
Como citar
Plasmonics, p. 1-8.