Yellow-to-blue frequency upconversion in Pr3+-doped aluminium fluoride glasses

Energy transfer and frequency upconversion in Pr3+-doped ZBLAN glass

“…But as the concentration increases, the decay gets non-exponential and the 1 D 2 lifetime decreases rapidly. This indicates that there exists energy transfer processes involving 1 D 2 [9,10].…”

“…Energy transfer and yellow-to-blue frequency upconversion have been studied in Pr 3+ -doped with other materials, including fluorophosphates [9], aluminium fluoride glasses [10] and KPb 2 Cl 5 crystal [11]. These studies are important to realize upconversion laser emission and optimize laser efficiency.…”

Photoluminescence of Pr3+-, Nd3+- and Ni2+-doped TeO2–ZnO–WO3–TiO2–Na2O glasses

“…491, 520 and 635 nm upconversion lasers have been realized in Pr 3+ : ZBLAN under infrared laser pump [3] indicating that it is an attractive upconversion laser media. Energy transfer and yellow-toblue frequency upconversion have been studied in Pr 3+ -doped with other materials, including fluorophosphates [4], aluminium fluoride glasses [5] and KPb 2 Cl 5 crystal [6]. These studies are important to realize upconversion laser emission and optimize laser efficiency.…”

Surface-plasmon-enhanced frequency upconversion in Pr3+ doped tellurium-oxide glasses containing silver nanoparticles

“…This process was already observed in other glassy systems and vitreous ceramics, which was attributed to an energy exchange process involving a pair of Pr 3+ ions. [12][13][14][15][16][17][18] Accordingly, two ions initially excited to level 1 D 2 exchange energy in such a way that one ion is promoted to the ͓ 3 P J ͑J =0,1,2͒, 1 I 6 ͔ manifold, while the other nonradiatively decays to lower energy levels. On the other hand, the intensity of the emission corresponding to the 1 D 2 → 3 H 5 transition linearly depends on the laser intensity.…”