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Synthesis and efficient near-infrared quantum cutting of Pr3+/Yb3+ co-doped LiYF4 single crystals
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10.1063/1.4757925
/content/aip/journal/jap/112/7/10.1063/1.4757925
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/7/10.1063/1.4757925

Figures

Image of FIG. 1.
FIG. 1.

(a) XRD pattern of the LiYF4:Pr3+/Yb3+. (b) Photo of Pr3+/Yb3+ co-doped LiYF4 single crystal. (c) The standard line pattern of the orthorhombic phase LiYF4 (JCPD 77-0816).

Image of FIG. 2.
FIG. 2.

(a) PLE spectra of the Pr3+:3P03H6 emission (606 nm, dotted) and the Yb3+:2F5/22F7/2 emission (980 nm, solid) in the 0.28 mol. % Pr3+/6.02 mol. %Yb3+ co-doped LiYF4 crystal pumped by 606 nm LD and 980 nm LD, respectively. (b) Visible-NIR PL spectra of various Pr3+/Yb3+ co-doped LiYF4 single crystals upon excitation of 480 nm LD.

Image of FIG. 3.
FIG. 3.

Energy level scheme and downconversion mechanism for the (Pr3+,Yb3+) couple. (a) The cooperative energy transfer process. (b) The cross relaxation energy transfer process.

Image of FIG. 4.
FIG. 4.

Decay curves of the Pr3+-Yb3+ ions co-doped LiYF4 crystal samples monitored at 606 nm under 480 nm LD excitation. The black solid lines are the stretched exponential fits for the decays.

Tables

Generic image for table
Table I.

Concentration of Pr3+ ions and Yb3+ ions in the crystals (mol.%).

Generic image for table
Table II.

Room temperature luminescence decay parameters, average decay lifetime, ETE, and QE as functions of Yb3+ concentration for χ mol. %, Pr3+/У mol. %, Yb3+ co-doped LiYF4 samples.

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/content/aip/journal/jap/112/7/10.1063/1.4757925
2012-10-09
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Synthesis and efficient near-infrared quantum cutting of Pr3+/Yb3+ co-doped LiYF4 single crystals
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/7/10.1063/1.4757925
10.1063/1.4757925
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