A5054887966- Glass properties and applications
- Luminescence Properties of Advanced Materials
- Solid State Laser Technologies
- Photonic Crystal and Fiber Optics
- Lanthanide and Transition Metal Complexes
- Phase-change materials and chalcogenides
- Semiconductor Lasers and Optical Devices
- Photorefractive and Nonlinear Optics
- Advanced Fiber Laser Technologies
- Analytical Chemistry and Sensors
- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Spectroscopy and Laser Applications
- Optical Network Technologies
- Organic Light-Emitting Diodes Research
- Optical and Acousto-Optic Technologies
- Photochemistry and Electron Transfer Studies
- Inorganic Fluorides and Related Compounds
- Photonic Crystals and Applications
- Nuclear materials and radiation effects
- Bone Tissue Engineering Materials
- Radiation Detection and Scintillator Technologies
- Nonlinear Optical Materials Studies
- Quantum optics and atomic interactions
- Photochromic and Fluorescence Chemistry
Bialystok University of Technology
2016-2025
AGH University of Krakow
2019
University of Białystok
2017
Tele & Radio Research Institute
2013
Warsaw University of Technology
2013
Lublin University of Technology
2013
Université du Québec en Outaouais
2013
Sapienza University of Rome
2013
Institute of Plasma Physics and Laser Microfusion
2013
In this paper, a 2 µm broadband emission under 796 nm laser diode excitation in low phonon energy GeO2-Ga2O3-BaO glass system is co-doped with 0.7Tm2O3/(0.07-0.7)Ho2O3 (mol%). The widest band (where the Tm3+ → Ho3+ transfer efficiency 63%) was obtained for 0.7Tm2O3/0.15Ho2O3 from which double-clad optical fiber realized and investigated. Optimization of Tm3+/Ho3+ concentration enabled acquisition amplified spontaneous (ASE) full width at half maximum (FWHM): 377 662 3 dB 10 bandwidth,...
Thermal stability and broadband NIR luminescence of Pr(3+) doped gallo-germanate glasses with BaF2 have been studied. The thermal factors are larger for glass samples low content exhibiting good against devitrification. Luminescence due to (1)D2 → (1)G4 transition was measured under 450 nm excitation. lifetimes depend critically on activator concentration, but remain nearly unchanged content. emission linewidth, the cross-section, figure merit (FOM) σem x FWHM product relatively large,...
Erbium (Er)-doped barium gallo-germanate (BGG) glasses modified by TiO2 have been investigated for near-infrared luminescence applications. Luminescence at 1.5 μm associated to 4I13/2 → 4I15/2 transition of Er3+ ions has examined in function concentration. Several spectroscopic and (NIR) laser parameters such as stimulated emission cross-section, bandwidth lifetime, quantum efficiency, gain figure merit were determined based on experiments theoretical calculations using the Judd-Ofelt...
The ErF3-doped oxyfluoride phospho-tellurite glasses in the (40-x) TeO2-10P2O5-45 (BaF2-ZnF2) -5Na2O-xErF3 system (where x = 0.25, 0.50, 0.75, 1.00, and 1.25 mol%) have been prepared by conventional melt-quenching method. effect of erbium trifluoride addition on thermal, structure, spectroscopic properties precursor glass was studied differential scanning calorimetry (DSC), Fourier-transform infrared (FTIR), Raman spectroscopy as well emission measurements, respectively. DSC curves were used...
This paper presents novel research on amorphous thin films doped with Er3+ ions deposited using the RF-sputtering method. The obtained layers' surface morphology, chemical composition, and optical properties were examined. Scanning electron microscopy analysis revealed a homogeneous layer structure thicknesses ranging from 160185 nm. Energy-dispersive spectroscopy confirmed presence of elements such as Ge, Ba, Ga. Optical measured photoluminescence spectroscopy, showing emission in range...
This study presents the development of Cr2O3 – doped glass-ceramic phosphors with possibility obtaining Cr³⁺/Cr⁴⁺ for broadband near infrared (NIR) emission, targeting potential applications in NIR phosphor converted LEDs (pc LEDs). Optimization Cr₂O₃ doping and annealing conditions glass-ceramic, we achieved emission range I (700 950 nm) II (1000 1700 biological windows. Based on luminescence measurements performed, glass sample, bands attributed to Cr³⁺ an octahedral environment were...
The effect of BaO content on the glass-forming ability, glass stability and structure tellurite–phosphate oxide glasses in 70TeO2–10P2O5–(20-x)ZnO–xBaO (x = 0, 5 10 mol%) system has been discussed. From differential scanning calorimetry, transition (Tg), crystallization (Tc) melting (Tm) temperatures were estimated. decrease reduced temperature (Trg) tendency parameter (Kh(Tc1)) with addition increasing caused a ability glasses. It was also found that thermal these against decreased increase...
In this paper 1400 nm–2200 nm broadband emission under 808 and 976 laser diodes excitation in germanate glasses co-doped with (0.35–0.7) Er 2 O 3 /(0.35–0.7) Tm /(0–0.15) Ho (mol%) are presented. Flattened luminescence profiles were achieved as a result of RE content optimization 0.35Er /0.7Tm /0.15Ho , (λ exc = nm) 0.7Er /0.35Tm /0.07Ho nm). The second, glass characterized by the widest range, has been used for fabrication double-clad optical fiber 15 µm/250 µm (core/outer cladding)...
Up-conversion luminescence processes of Tb3+ ions in GeO2-Ga2O3-BaO glass system were investigated under diode-laser excitation Yb3+. Emission bands at 489, 543, 586 and 621nm corresponding to 5D4→7FJ (J = 6, 5, 4, 3) transitions 381, 415, 435 nm resulting from 5D3, 5G6→7FJ 4) observed. The highest up-conversion emission intensity was obtained for 0.7Yb2O3/0.7Tb2O3 co-doped lead-free germanate glass. energy transfer coefficient determined based on fitting calculations experimental results by...
Antimony-germanate glasses co-doped with Er 3+ /Tm ions as a material for active waveguides application have been investigated. In result of optimizations rare earths, concentration wide (Δλ FWHM =420 nm ) luminescence emission in the range 1.4 to 1.9 μm was obtained molar composition 1%Er 2 O 3 : 0.25%Tm . The influence ratio on spectra has Luminescent properties fabricated glass indicate that elaborated is promising broad tunable integrated laser sources and broadband optical amplifiers.