Journal Article

PUBDB-2025-04523

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Examination of spectroscopic and thermographic qualities of Tm-doped and Yb/Er co-doped germanate tellurite glasses

Lisiecki, R. (Corresponding author)Extern* ; Solarz, P.Extern* ; Ryba-Romanowski, W.Extern*

2026
Elsevier Amsterdam

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Please use a persistent id in citations: doi:10.1016/j.materresbull.2025.113786

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.

Note: ISSN 0025-5408 not unique: **2 hits**. Waiting for fulltext

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)

Research Program(s):

1. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
2. FS-Proposal: I-20240170 EC (I-20240170-EC) (I-20240170-EC)
3. NEPHEWS - NEutrons and PHotons Elevating Worldwide Science (NEPHEWS) (101131414) (101131414)

Experiment(s):

1. PETRA Beamline P66 (PETRA III)

Appears in the scientific report 2026

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; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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