Spectroscopic Study of Neodymium-Doped Sodium–Yttrium Double Fluoride Nd3+:Na0.4Y0.6F2.2 crystals

Radiative emission probabilities of Dy3+-doped alkali borate and fluoroborate glasses

“…The calculated lifetimes τ R presented in Table 2 for certain excited luminescent transitions of Dy 3+ ions in glasses A and B are comparable with those of other crystals and glasses reported in literature [5,[14][15][16][17][18]. From these results, it is noted that there are several transitions namely 4 F 9/2 → 6 H 15/2 (483 nm), 4 F 9/2 → 6 H 13/2 (575 nm), 4 F 9/2 → 6 H 11/2 (663 nm), 4 F 9/2 → 6 H 9/2 (750 nm) in Dy 3+ ions, which can be eventually used for laser applications in the visible region.…”

Population of excited erbium levels in Er3+:Na0.4Y0.6F2.2 (Er:NYF) laser crystals

“…The intrinsic lifetimes for radiative Er levels were determined from the experimental kinetics curves measured in low concentrated crystals. The obtained MPNT rates coincide well with the dependence of MPNT rates on energy gap in NYF crystals estimated in [9]. Details of the calculation for Er:NYF crystal will be reported elsewhere.…”

Energy Level Structure of LiYF<SUB>4</SUB>:Dy<SUP>3+</SUP>: Crystal Field Analysis

“…This substitution does not require any charge compensation, and, as the result, the host lattice is not disrupted significantly. The IR part of the absorption and luminescence spectrum of YLF:Dy 3þ has been studied in, 9,10) and the visible and UV spectra of the same crystal have been analyzed in. 11) In this paper we present crystal field analysis of the energy level structure of Dy 3þ in the YLF crystal, in comparison with experimental spectra of absorption, and estimate EPR gfactors g k , g ?…”