Upconversion excitations in Pr3+-doped BaY2F8 crystal

We report the orange-to-blue and infrared-(IR)-to-blue wavelengths upconversion luminescence in Pr 3+ :BaY 2 F 8 crystals. Mechanism of the orange light upconversion into blue 3 P 0 state emission was confirmed to be energy transfer between two Pr 3+ ions in the 1 D 2 state. IR-to-blue upconversion...

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Published inApplied physics. B, Lasers and optics Vol. 104; no. 4; pp. 873 - 881
Main Authors Piramidowicz, R., Mahiou, R., Boutinaud, P., Malinowski, M.
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer-Verlag 01.09.2011
Subjects
Computing time
Crystals
Engineering
Excitation
Ground state
Infrared radiation
Lasers
Optical Devices
Optics
Photonics
Physical Chemistry
Physics
Physics and Astronomy
Praseodymium
Quantum Optics
Upconversion
Upconversion Process
Excited State Absorption
Population Inversion
Pump Power
Praseodymium
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Summary:We report the orange-to-blue and infrared-(IR)-to-blue wavelengths upconversion luminescence in Pr 3+ :BaY 2 F 8 crystals. Mechanism of the orange light upconversion into blue 3 P 0 state emission was confirmed to be energy transfer between two Pr 3+ ions in the 1 D 2 state. IR-to-blue upconversion has only been observed under two different color IR pumping. The first resonant step was the 3 H 4 → 1 G 4 ground state absorption transition, and the second resonant transition was the excited state absorption from the 1 G 4 to 1 I 6 and 3 P J levels. A comparison of the efficiency of the IR-to-blue upconversion in several praseodymium activated host is presented and discussed. A model of the IR pumped upconversion praseodymium blue laser is presented and the population inversion conditions are calculated.
Bibliography:ObjectType-Article-2
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ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-011-4407-5