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Colour centre in YAG: Cr3+ crystals

✍ Scribed by S. Kvapil; Jirí Kvapil; B. Mánek; B. Perner; B. K. Sevastyanov; V. P. Orekhova

Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
333 KB
Volume
17
Category
Article
ISSN
0232-1300

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## Abstract Colour changes of YAG crystals doped with rare earth ions and annealed in hydrogen, oxygen, vacuum or argon are described. The influence of UV irradiation is also given. Some crystals were further doped with Ca, Sr, Ba, or Cr, respectively. Yellow or brown colouring of the crystals is a

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## Abstract The colour changes of YAG crystals doped with Ti, V, Cr, Mn, Fe, Co and Ni as well as those doped with Mg or Be are described. The comparison of samples annealed in hydrogen oxygen and argon and exposed to an UV irradiation is given. Yellow or brown colour of YAG crystals is attributed