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@ARTICLE{Lisiecki:639431,
      author       = {Lisiecki, R. and Solarz, P. and Ryba-Romanowski, W.},
      title        = {{E}xamination of spectroscopic and thermographic qualities
                      of {T}m-doped and {Y}b/{E}r co-doped germanate tellurite
                      glasses},
      journal      = {Crystal engineering},
      volume       = {194},
      issn         = {0025-5408},
      address      = {Amsterdam},
      publisher    = {Elsevier},
      reportid     = {PUBDB-2025-04523},
      pages        = {113786},
      year         = {2026},
      note         = {ISSN 0025-5408 not unique: **2 hits**. Waiting for
                      fulltext},
      abstract     = {Oxyfluride Germanate Tellurite glasses single doped with
                      (Tm3+) thulium, (Tm3+,Yb3+) thulium / ytterbium co-doped and
                      (Tm3+,Yb3+,Er3+) thulium / ytterbium / erbium triple-doped
                      were fabricated. Room temperature absorption spectra were
                      employed to evaluate the relevant radiative transition rates
                      and branching ratio of luminescence. Distribution of the
                      measured emission lines within UV–vis spectral region is
                      considerably different when the selective excitation
                      wavelengths at 358 nm and 445 nm were utilized. The
                      excellent color purity exceeding 90 $\%$ was estimated for
                      Tm-doped glass luminescence. The significant quantum
                      efficiency of thulium first excited state and the related
                      NIR emission cross section indicate potential optical
                      amplification between 1908–2080 nm. Effective broad band
                      tellurium optical spectra were examined employing
                      synchrotron radiation. Ultrashort laser pulse excitations
                      disclosed the different relaxation dynamic of the excited
                      states and the involved interionic phenomena. Luminescence
                      intensity ratios as function of temperature were determined
                      for some diverse combinations of the measured bands
                      originating in thermally coupled and non-thermally coupled
                      levels. The highest value of relative sensitivity Sr=0.78
                      $\%K-1$ at T = 350 K was acquired for a Tm/Yb/Er co-doped
                      glass utilizing both anti-Stokes emissions of thulium and
                      erbium.},
      cin          = {DOOR ; HAS-User},
      ddc          = {670},
      cid          = {I:(DE-H253)HAS-User-20120731},
      pnm          = {6G3 - PETRA III (DESY) (POF4-6G3) / FS-Proposal: I-20240170
                      EC (I-20240170-EC) / NEPHEWS - NEutrons and PHotons
                      Elevating Worldwide Science (NEPHEWS) (101131414)},
      pid          = {G:(DE-HGF)POF4-6G3 / G:(DE-H253)I-20240170-EC /
                      G:(EU-Grant)101131414},
      experiment   = {EXP:(DE-H253)P-P66-20150101},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1016/j.materresbull.2025.113786},
      url          = {https://bib-pubdb1.desy.de/record/639431},
}