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- Title
Nonlinear Optical Properties of Tungsten Lead–Pyrophosphate Glasses Containing Metallic Copper Nanoparticles.
- Authors
Manzani, Danilo; Almeida, Juliana M. P.; Napoli, Mariana; De Boni, Leonardo; Nalin, Marcelo; Afonso, Conrado R. M.; Ribeiro, Sidney J. L.; Mendonça, Cleber R.
- Abstract
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 m 2/W from visible to telecom region, thus presenting an enhancement effect at wavelengths near the plasmon and Cu +2 d–d band.
- Subjects
NONLINEAR optics; TUNGSTEN; PYROPHOSPHATES; METALLIC glasses; METAL nanoparticles; COPPER; METALLIC oxides
- Publication
Plasmonics, 2013, Vol 8, Issue 4, p1667
- ISSN
1557-1955
- Publication type
Article
- DOI
10.1007/s11468-013-9585-z