Abstract
YAP:Nd, Cr grown under Ar-H2 or Ar-He-H2 atmosphere possesses good energy transfer from Cr3+ to Nd3+ but suffers from the colour centre formation. The centre formation was completely prevented using further admixture of Ce3+ and 10−4−10−3 wt. % Fe. Small luminescence quenching of Cr3+ or Nd3+ due to iron ions is negligible in the presence of Ce3+. The crystals may be also heavily doped with Nd3+ because the increased pumping efficiency compensates the shortening of the luminescence lifetime. YAP: Nd, Ce, Cr, Fe is advisible active laser material particularly for all the types of pulsed lasers.
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Kvapil, J., Perner, B., Kvapil, J. et al. Laser properties of coactivated YAP: Nd free of colour centres. Czech J Phys 38, 1281–1287 (1988). https://doi.org/10.1007/BF01597298
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DOI: https://doi.org/10.1007/BF01597298