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Influence of silver nanoparticles on the infrared-to-visible frequency upconversion in Tm3+/Er3+/Yb3+ doped GeO2-PbO glass
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10.1063/1.4801909
/content/aip/journal/jap/113/15/10.1063/1.4801909
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/15/10.1063/1.4801909
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Figures

Image of FIG. 1.
FIG. 1.

Absorbance spectra of the Tm3+/Er3+/Yb3+ doped GeO2-PbO glasses containing silver nanoparticles heat-treated during different time intervals (12, 24, and 48 h); the spectrum for the sample without silver NPs is shown as reference. (a) 400–900 nm and (b) 900–1700 nm. Samples' thickness: 2 mm.

Image of FIG. 2.
FIG. 2.

Emission spectra of Tm3+/Er3+/Yb3+ doped GeO2-PbO samples containing silver NPs. The spectrum of the sample without silver NPs is shown as reference. Excitation wavelength: 980 nm.

Image of FIG. 3.
FIG. 3.

Energy levels diagram of Tm3+, Er3+, and Yb3+ ions. Solid arrows represent radiative transitions; dotted arrows indicate energy transfer Yb3+ → Tm3+ and Yb3+ → Er3+; dashed arrows indicate nonradiative transitions. ET refers to energy transfer and CR means cross-relaxation.

Image of FIG. 4.
FIG. 4.

Dependence of the upconversion intensity with the laser power.

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/content/aip/journal/jap/113/15/10.1063/1.4801909
2013-04-16
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Influence of silver nanoparticles on the infrared-to-visible frequency upconversion in Tm3+/Er3+/Yb3+ doped GeO2-PbO glass
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/15/10.1063/1.4801909
10.1063/1.4801909
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