Hydroxil and iron ions in YAP: Er laser crystals |
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Authors: | Bohumil Perner JiŘí Kvapil Josef Kvapil |
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Institution: | (1) Monokrystaly Turnov, Palackého 175, 511 19 Turnov, Czechoslovakia |
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Abstract: | 4S3/2 4I9/2 (1.663 m) and4I11/2 4I13/2 (2.731 m) laser transitions in YAP Er were studied using a material containing Fe, hydroxil impurities and other codopants. Iron impurity causes luminescence quenching of both the4S3/2 and4I11/2 levels whereas OH– ions enlarge losses, particularly at 2.731 m. The effect of iron and hydroxil impurities may be easily diminished by adding Mg2+ ions, whereas the admixture of Ce3+ or Zr4+ brings no positive effects. |
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