Dominik Dorosz

Dominik Dorosz
AGH University of Science and Technology in Kraków | AGH · Department of Silicate Chemistry

Professor

About

285
Publications
34,629
Reads
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1,905
Citations
Introduction
Photonics, Optical fibre technology, Lanthanides doped glasses, glass-ceramics and optical fibres, Spectroscopy of optical materials, Optical fibre sensors
Additional affiliations
January 2004 - August 2016
Bialystok University of Technology
Position
  • Vice dean for science

Publications

Publications (285)
Article
In this paper, Ho³⁺/Yb³⁺ co-doped chloride-modified fluorotellurite glasses with 2-3 μm mid-infrared luminescence are prepared. By measuring and investigating the transmission spectra and emission spectra, the prepared glasses show a high transmittance (91%) and low maximum phonon energy (813cm⁻¹). Based on the measured absorption spectra, the Judd...
Article
Full-text available
The effect of BaF2, MgF2, and AlF3 on the structural and luminescent properties of gallo-germanate glass (BGG) doped with erbium ions was investigated. A detailed analysis of infrared and Raman spectra shows that the local environment of erbium ions in the glass was influenced mainly by [GeO]4 and [GeO]6 units. Moreover, the highest number of non-b...
Article
Full-text available
Up-conversion nanoparticles have garnered lots of attention due to their ability to transform low energy light (near-infrared) into high-energy (visible) light, enabling their potential use as remote visible light nano-transducers. However, their low efficiency restricts their full potential. To overcome this disadvantage, fluoroindate glasses (InF...
Article
In current work, spectroscopic properties of Nd ³⁺ ions in titanate-germanate glasses have been studied for near-IR luminescence and laser applications. Near-IR luminescence at 1.06 µm due to ⁴ F 3/2 → ⁴ I 11/2 laser transition of Nd ³⁺ ions has been examined in the function of TiO 2 concentration. Based on theoretical calculations and experimental...
Conference Paper
In this paper, we presented the technology of erbium-doped SiOx:TiOy films with different concentrations of erbium (0, 2, 4,6 wt.%) were fabricated using the sol-gel method and dip-coating technique. Tetraethyl orthosilicate (Si(OC2H5)4; TEOS) and titania (IV) ethoxide (Ti(OC2H5)4; TET) were used as precursors of silica, and titania, respectively....
Article
Full-text available
Glass-ceramic is semi-novel material with many applications, but it is still problematic in obtaining fibers. This paper aims to develop a new glass-ceramic material that is a compromise between crystallization, thermal stability, and optical properties required for optical fiber technology. This compromise is made possible by an alternative method...
Article
In this paper 1400 nm–2200 nm broadband emission under 808 nm and 976 nm laser diodes excitation in germanate glasses co-doped with (0.35–0.7) Er 2 O 3 /(0.35–0.7) Tm 2 O 3 /(0–0.15) Ho 2 O 3 (mol%) are presented. Flattened luminescence profiles were achieved as a result of RE content optimization in glasses co-doped with 0.35Er 2 O 3 /0.7Tm 2 O 3...
Article
Full-text available
Europium polymeric complexes based on a variation of 2-thenoyltrifluoroacetone (TTA) and succinimide (SI) using K cations as a bridge with exceptional photophysical properties were obtained. The intensity of the photoluminescence increased from 53 to 300% compared with other efficient Eu complexes, also the quantum efficiency of the compounds repor...
Preprint
Full-text available
The luminescent properties of lanthanides doped optical fibers can be modified by introducing one or more rare earth elements thus obtaining the possibility of profiling the luminescence spectrum through co-emission phenomena, energy transfer, and conversion phenomena in the energy structure of lanthanides (e.g. energy transfers, cross-relaxation)....
Article
Pr³⁺/Er³⁺ co-doped glasses based on InF3 were synthesized and then studied for white light emission. The emission spectra consist of several bands corresponding to characteristic 4f-4f electronic transitions of Pr³⁺ and Er³⁺ ions. The relative intensities of emission bands depend on the selective excitation wavelengths. The energy transfer process...
Article
Full-text available
Correction for ‘Highly efficient green up-conversion emission from fluoroindate glass nanoparticles functionalized with a biocompatible polymer’ by G. Lesly Jimenez et al. , RSC Adv. , 2022, 12 , 20074–20079, https://doi.org/10.1039/D2RA03171J.
Article
Full-text available
This study presented an analysis of the TeO2/GeO2 molar ratio in an oxide glass system. A family of melt-quenched glasses with the range of 0–35 mol% of GeO2 has been characterized by using DSC, Raman, MIR, refractive index, PLE, PL spectra, and time-resolved spectral measurements. The increase in the content of germanium oxide caused an increase i...
Article
Full-text available
An investigation of the structural and luminescent properties of the transparent germanate glass-ceramics co-doped with Ni2+/Er3+ for near-infrared optical fiber applications was presented. Modification of germanate glasses with 10–20 ZnO (mol.%) was focused to propose the additional heat treatment process controlled at 650 °C to obtain transparent...
Article
Full-text available
Titanium dioxide photoanodes for hydrogen generation suffer from a profound mismatch between the optical absorption of TiO2 and the solar spectrum. To solve the problem of low solar-to-chemical efficiency, optically active materials are proposed. In this work, TiO2 thin films containing erbium were deposited by radio frequency RF magnetron sputteri...
Article
Full-text available
This work reports on the fabrication and analysis of near-infrared and mid-infrared luminescence spectra and their decays in fluoroindate glasses co-doped with Yb3+/Ho3+. The attention has been paid to the analysis of the Yb3+→ Ho3+ energy transfer processed ions in fluoroindate glasses pumped by 976 nm laser diode. The most effective sensitization...
Article
Full-text available
The effects of Sm3+ content on the optical properties and bioactivity of 13-93 bioactive glass were presented. Sm3+ doped glass fibers drawn from bioactive glass were analyzed in simulated body fluid (SBF) for the determination of ion release. Optical analysis of the Sm3+ ions in bioactive glass fibers was used for degradation monitoring. While the...
Article
The subject of the study was to determine the effect of erbium ions (Er3 +) on the structure of tellurite glasses. For this purpose, the positron annihilation lifetime and Raman spectroscopy were used. Changes in positron lifetime parameters and the corresponding intensities have been linked to the geometry and the number of free spaces, the pores...
Article
Full-text available
Fluoroindate glasses co-doped with Pr³⁺/Er³⁺ ions were synthesized and their near-infrared luminescence properties have been examined under selective excitation wavelengths. For the Pr³⁺/Er³⁺ co-doped glass samples several radiative and nonradiative relaxation channels and their mechanisms are proposed under direct excitation of Pr³⁺ and/or Er³⁺. T...
Article
Full-text available
Glass and ceramic materials doped with rare earth (RE) ions have gained wide interest in photonics as active materials for lasers, optical amplifiers, and luminescent sensors. The emission properties of RE-doped glasses depend on their chemical composition, but they can also be tailored by modifying the surrounding active ions. Typically, this is a...
Article
Full-text available
Photon management involving particularly an up-conversion process is proposed as a relatively novel strategy for improving the efficiency of hydrogen generation in photoelectrochemical cells (PEC) with wide-band gap photoanodes. Optically active photoanode has been constructed by electrodeposition of titanium dioxide nanopowders containing Nd³⁺ ion...
Article
In-situ Optical Emission Spectroscopy (OES) combined with quantum chemical calculations was used as a powerful tool to find out the exited reactive species existing in plasma discharge during the process of lead sulfide chalcogenide materials deposition. Low temperature nonequilibrium RF (40.68 MHz) plasma at low pressure (0.1 Torr) was employed fo...
Article
A series of samples containing the phosphate and tellurite glass formers were prepared by varying the barium fluoride concentration from 0 to 30 mol %. The results of the XRD analysis were indicated that barium fluoride in the 5–30 mol% content improved the glass-forming nature of oxyfluoride phosho-tellurite glasses in the TeO2–P2O5–BaF2–ZnF2–Na2O...
Article
Full-text available
An investigation of the crystallization kinetics of 45S5 Bioglass® using differential scanning calorimetry is presented in this paper. Thermal analysis was performed using the Friedman method. The activation energy and the Avrami index were calculated. The glass samples were subjected to additional controlled heat treatment at 620 °C in order to ob...
Article
This work reports the sensitization of Ho3+ - doped fluoroindate glasses for near and mid-infrared emission. Special attention has been paid on the comparative analysis of the luminescent properties of the glasses co-doped with 0.8ErF3/1.6HoF3, 0.8YbF3/1.6HoF3, and 0.8TmF3/1.6HoF3. Moreover, the energy transfer processes between rare-earth (donor-a...
Article
The RE-co-doped silica optical fibers emitting in the eye-safe spectral range are still attractive for new applications like LIDAR, pollution monitoring, navigation, and free-space optical communication. High gain and beam quality of fiber sources based on large mode area (LMA) active fibers can be fabricated by the well-known Modified Chemical Vap...
Article
The article presents the white light emission poly (methyl methacrylate) cylindrical fibre fabricated by co-doping by organic luminescent dyes. The used composition of aromatic hydrocarbon 1,4-Bis(2-methylstyryl) benzene Bis(MSB) and xanthene dye Rhodamine B (RhB) assures covering the emission in the range 370–700 nm under 355 nm excitation (Nd-YAG...
Article
This work reports on the analysis of structural and spectroscopic properties of the fluoroindate glasses co-doped with Er3+/Ho3+. Structural analysis showed that erbium and holmium ions were modifier ions and depolymerizedof the fluoroindate glass network. The energy transfer processes between rare - earth ions in fluoroindate glasses pumped by and...
Article
This work reports on the analysis of near-IR and mid-IR luminescence spectra and their decays in fluoroindate glasses co-doped with Er3+/Tm3+. In particular, the energy transfer processes between rare earth ions in fluoroindate glasses pumped by 796 nm and 980 nm laser diode have been examined. Owing to donor-acceptor energy transfer and superposit...
Article
Currently, there is a growing interest in the development of multi-colored materials based on the combination of two or more systems (organic or inorganic) as a strategy to take advantage of their combined physical or chemical properties. These multi-colored materials have found potential applications as sensors, amplifiers, and optical fibers. In...
Article
Full-text available
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 the conventional melt-quenching method. The effect of erbium trifluoride addition on thermal, structure, and spectroscopic properties of oxyfluoride phospho-telluri...
Article
Full-text available
Novel glass-ceramic optical fibers containing NaLuF4 nanocrystals doped with 0.5ErF3 and 2YbF3 (mol%) have been prepared by the rod-in-tube method and controlled crystallization. NaLuF4 nanocrystals with a size around 20 nm are obtained after heat treatment at 600 °C. Intense upconverted green and red emissions due to (²H11/2, ⁴S3/2) → ⁴I15/2 and ⁴...
Article
Full-text available
The effect of BaO content on the glass-forming ability, glass stability and structure of tellurite–phosphate oxide glasses in the 70TeO2–10P2O5–(20-x)ZnO–xBaO (x = 0, 5 and 10 mol%) system has been discussed. From the differential scanning calorimetry, the glass transition (Tg), crystallization (Tc) and the melting (Tm) temperatures were estimated....
Article
In this work structural and luminescence properties of gallo-germanate glasses were investigated. The mentioned glass system was modified with barium and antimony oxides and doped with Eu³⁺ ions. The starting glass consisted of barium oxide as a modifier which was then gradually replaced by antimony oxide to form six glass samples. The gallo-german...
Article
In this work, particular attention was paid to the structural characteristics of the amorphous phase in glass-ceramic glazes from the SiO 2 [sbnd]Al 2 O 3 [sbnd]CaO[sbnd]MgO[sbnd]Na 2 O[sbnd]K 2 O[sbnd]ZnO system. The study was carried out on model glasses whose chemical composition corresponds to the chemical composition of the vitreous phase of t...
Article
Full-text available
Luminescent optical fibres are one of the most important photonics elements as they allow to construct high power fibre lasers and different unique optical sources in the broad range from UV to IR. The most important requirements cover efficient luminescence core materials and easily pumped optical fibre constructions. Depends on the applications t...
Article
Holmium singly doped barium gallo-germanate glasses have been studied for near-infrared luminescence at 2000 nm. Near-infrared luminescence spectra corresponding to ⁵I7 → ⁵I8 transition of trivalent holmium and their decays have been examined as a function of BaF2 and activator (Ho³⁺) concentration. The integrated intensities of luminescence bands...
Article
The fabrication and photophysical characterization of polymeric fiber preforms, obtained from a polymerization process of poly(methyl methacrylate) (PMMA) doped with terbium(III)-tris-(2,2,6,6- tetramethyl-3,5-heptanedionate) (Tb(tmhd)3) at 1.12e1.13 mmol concentration and co-doped with europium(III)-tris-(2,2,6,6-tetramethyl-3,5-heptanedionate) (E...
Article
Full-text available
Bismuth-germanate glasses with low hydroxide content co-doped with Ho3+/Yb3+ ions have been investigated in terms of structural and spectroscopic properties. To reduce OH- ions content and improve transmittance value at the wavelength of 3.1 µm, the glass synthesis has been carried out in low vacuum conditions (45–65 mBar). The composition of the h...
Article
The near-infrared emission properties in low-phonon (805 cm ⁻¹ ) gallo-germanate glasses and their glass fibers co-doped with Yb ³⁺ /Ho ³⁺ and Yb ³⁺ /Tm ³⁺ /Ho ³⁺ have been investigated. Emission bands centered at about 2 μm correspond to ³ F 4 → ³ H 6 (Tm ³⁺ ) and/or ⁵ I 7 → ⁵ I 8 (Ho ³⁺ ) transitions. The spectral widths of emission lines are rel...
Article
The influence of Cr ³⁺ concentration on near-infrared emission of Ho ³⁺ in barium gallo-germanate glass has been studied. Near-infrared emission bands, due to ⁴ T 2 → ⁴ A 2 (Cr ³⁺ ) as well as ⁵ I 6 → ⁵ I 8 and ⁵ I 7 → ⁵ I 8 (Ho ³⁺ ) transitions, were observed under excitation of Cr ³⁺ . The enhanced and broadband near-infrared emission was obtaine...
Article
Full-text available
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 emission band (where the Tm3+ → Ho3+ energy transfer efficiency is 63%) was obtained for 0.7Tm2O3/0.15Ho2O3 co-doped glass from which a double-clad optical fiber w...
Article
Full-text available
The polymeric optical fibre technology can be successfully used for UV spectrum range radiation measurements.Anew type of fluorescent optical fibre optode is presented. The used fluorescent wave-shifter was used for UV-VIS conversion and radiation measurements. The linear characteristic with sensitivity 480 mW ⁻¹ is presented for UV range 7.2-13.6...
Chapter
In this chapter, the visible luminescent properties of antimony-germanate and gallo-germanate glasses, glass-ceramics and optical fibers co-doped with different rare-earth (RE) systems (e.g., Sm³⁺, Eu³⁺, Yb³⁺/Tm³⁺, Yb³⁺/Ho³⁺, Yb³⁺/Tm³⁺/Ho³⁺, Yb³⁺/Tb³⁺, Yb³⁺/Eu³⁺) have been analyzed. Emission was obtained by direct excitation of RE ions or in case o...
Conference Paper
We report on the first spectroscopic characterization of a four-doped Yb:Er:Tm:Ho germanate glass. Overlapping of the Er, Tm and Ho may provide gain from 1550 nm to about 2150 nm with optimized concentration.