2017
DOI: 10.1111/jace.14771
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Polycrystalline Ho: LuAG laser ceramics: Fabrication, microstructure, and optical characterization

Abstract: Ho:Lu3Al5O12(LuAG) transparent ceramics are potential 2 μm eye‐safe laser materials. Polycrystalline 0.8 at.% Ho:LuAG ceramics with high optical quality were successfully fabricated by solid‐state reactive sintering of high‐purity oxide powders. The microstructure, the optical transmission, the spectrum characteristic, and the laser performance were investigated in this paper. The average grain size of Ho:LuAG ceramics vacuum sintered at 1830°C for 30 hour is about 14 μm. The in‐line transmittance of the sampl… Show more

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Cited by 10 publications
(3 citation statements)
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“…The detailed calculation process has been given in Ref. . We can easily observe that the absorption and emission cross sections at 2.7 μm in 2Er 3+ /2Ho 3+ ‐codoped GC are 0.61 × 10 −20 cm 2 and 0.80 × 10 −20 cm 2 , respectively, which are larger than that of 2Er 3+ singly‐doped GC (0.58 × 10 −20 cm 2 and 0.76 × 10 −20 cm 2 ).…”
Section: Resultsmentioning
confidence: 99%
“…The detailed calculation process has been given in Ref. . We can easily observe that the absorption and emission cross sections at 2.7 μm in 2Er 3+ /2Ho 3+ ‐codoped GC are 0.61 × 10 −20 cm 2 and 0.80 × 10 −20 cm 2 , respectively, which are larger than that of 2Er 3+ singly‐doped GC (0.58 × 10 −20 cm 2 and 0.76 × 10 −20 cm 2 ).…”
Section: Resultsmentioning
confidence: 99%
“…Despite substantial progress in ceramic technology, it has been challenging to prepare this type of unique transparent nanoceramics with nanosized grains. The current and primary approaches derived from powder sintering synthesis generally impose stringent control over a set of experimental variables, such as pressure, temperature, sintering duration, and these processes are always accompanied by undesired rapid grain growth . Alternatively, more extreme synthesis techniques, including super‐high pressure, spark plasma sintering, and containerless processing may shift the grains toward submicrometer region; however, the methods are inherently not scalable and also strictly limit the available sample size.…”
Section: Introductionmentioning
confidence: 99%
“…

interest in a wide range of applications, including missile guidance, infrared night vision, and laser and nuclear radiation detection. [6][7][8] Alternatively, more extreme synthesis techniques, including superhigh pressure, spark plasma sintering, and containerless processing may shift the grains toward submicrometer region; [9][10][11][12][13] however, the methods are inherently not scalable and also strictly limit the available sample size. Despite substantial progress in ceramic technology, it has been challenging to prepare this type of unique transparent nanoceramics with nanosized grains.

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mentioning
confidence: 99%