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Synthesis of High Purity Yb 3+ ‐Doped Lu 2 O 3 Powder for High Power Solid‐State Lasers
Author(s) -
Kim Woohong,
Baker Colin,
Villalobos Guillermo,
Frantz Jesse,
Shaw Brandon,
Lutz Austin,
Sadowski Bryan,
Kung Frederic,
Hunt Machael,
Sanghera Jasbinder,
Aggarwal Ishwar
Publication year - 2011
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2011.04485.x
Subject(s) - materials science , doping , solid state , laser , analytical chemistry (journal) , radiochemistry , chemistry , optoelectronics , optics , physics , chromatography
We have synthesized high‐purity Yb 3+ ‐doped Lu 2 O 3 powder by the coprecipitation method. We have demonstrated that the recrystallization of the metal nitrates greatly improve the chemical purity of the resulting oxides. From thermogravimetry and differential thermal analysis study, we have calculated the approximate formula of the oxinitrate precipitate precursor as Lu 1.8 Yb 0.2 (OH) 5.44 (NO 3 ) 0.56 ·0.58H 2 O. Fine and soft agglomerate powders were obtained after calcinations. We have shown that the powder is mainly in the form of polycrystalline soft agglomerates composed with 15–20 nm size crystals. The resulting ceramic showed higher transparency (close to theoretical limit) compared with the ones fabricated with commercial powders.