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Tb3+-Yb3+ cooperative down and up conversion processes in Tb0.81Ca0.19F2.81:Yb3+ single crystals
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10.1063/1.3671406
/content/aip/journal/jap/110/12/10.1063/1.3671406
http://aip.metastore.ingenta.com/content/aip/journal/jap/110/12/10.1063/1.3671406
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Figures

Image of FIG. 1.
FIG. 1.

(Color online) Photograph of (a) an as-grown TCF:Yb3+ single crystal wafer of 3.8 mol %) and (b) cut and polished oriented prisms under crossed polarizers.

Image of FIG. 2.
FIG. 2.

(Color online) XRD pattern of 3.8 mol % TCF:Yb3+ together with the calculated fit.

Image of FIG. 3.
FIG. 3.

(Color online) Transmittance spectra of 3.8 and 8.4 mol % TCF:Yb3+ single crystals in comparison.

Image of FIG. 4.
FIG. 4.

Emission spectrum after UV excitation at 337 nm for 3.8 mol % TCF:Yb3+ single crystal.

Image of FIG. 5.
FIG. 5.

(Color online) Relative IR emission efficiency and total QE as a function of NYb in TCF:Yb3+ single crystals. The inset shows the luminescence intensity as a function of the optical path for an absorbing (977 nm) wavelength and a non-absorbing (542 nm) one.

Image of FIG. 6.
FIG. 6.

(Color online) Time resolved luminescence of the Tb3+ 5D47F5 channel (emission at 542 nm) after excitation at 337 nm for the TCF:Yb3+ crystal family. The inset shows the QE, estimated from the total luminescence of the decay curves, as a function of the NYb.

Image of FIG. 7.
FIG. 7.

(Color online) UC emission of Tb3+ 5D47FJ after 920 nm excitation in the Yb3+ absorption band in TCF:Yb3+ with 8.4 mol % NYb. The inset displays the corresponding power dependence of the UC, indicating the occurrence of two and three IR photon absorption processes.

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/content/aip/journal/jap/110/12/10.1063/1.3671406
2011-12-29
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Tb3+-Yb3+ cooperative down and up conversion processes in Tb0.81Ca0.19F2.81:Yb3+ single crystals
http://aip.metastore.ingenta.com/content/aip/journal/jap/110/12/10.1063/1.3671406
10.1063/1.3671406
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