Zobrazeno 1 - 10
of 281
pro vyhledávání: '"Wojciech A. Pisarski"'
Publikováno v:
Optical Materials: X, Vol 23, Iss , Pp 100336- (2024)
In this work, we reported the results of photoluminescent and structural investigations of Gd3+/Tb3+ co-doped silicate xerogels as well as derivative SiO2-LaF3 nano-glass-ceramics. The molar ratio of appropriate acetates used during the synthesis, i.
Externí odkaz:
https://doaj.org/article/254b18f7f0a0461abdf00a8d1054bca6
Publikováno v:
Optical Materials: X, Vol 22, Iss , Pp 100311- (2024)
This article investigates the luminescent properties of olivine-type germanate ceramics luminophores doped with trivalent samarium (Sm3+) ions, prepared through a solid-state reaction method with two distinct compositions: Li2MgGeO4:0.5Sm3+ and Li2Zn
Externí odkaz:
https://doaj.org/article/268f33d08c7c4f298280f2736fb26488
Autor:
Piotr Miluski, Krzysztof Markowski, Marcin Kochanowicz, Marek Łodziński, Jacek Żmojda, Wojciech A. Pisarski, Joanna Pisarska, Marta Kuwik, Magdalena Leśniak, Dominik Dorosz, Tomasz Ragiń, Valiantsin Askirka, Jan Dorosz
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-7 (2023)
Abstract Double-clad optical fiber with a multi-ring core profile doped with thulium and holmium fabricated by Modified Chemical Vapor Deposition Chelate Doping Technology (MCVD-CDT) is presented. The measured Tm2O3 and Ho2O3 complexes’ weight conc
Externí odkaz:
https://doaj.org/article/efae4b70ed7543089386180ca6f3d013
Autor:
Karolina Kowalska, Marta Kuwik, Joanna Pisarska, Magdalena Leśniak, Dominik Dorosz, Marcin Kochanowicz, Jacek Żmojda, Jan Dorosz, Wojciech A. Pisarski
Publikováno v:
Journal of Materials Research and Technology, Vol 21, Iss , Pp 4761-4772 (2022)
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 been examined in function
Externí odkaz:
https://doaj.org/article/bf62f55fac934380949bbdc0b86a3a64
Autor:
Piotr Miluski, Krzysztof Markowski, Marcin Kochanowicz, Marek Łodziński, Wojciech A. Pisarski, Joanna Pisarska, Marta Kuwik, Magdalena Leśniak, Dominik Dorosz, Jacek Żmojda, Tomasz Ragiń, Jan Dorosz
Publikováno v:
Materials, Vol 16, Iss 24, p 7679 (2023)
LMA (Large Mode Area) optical fibers are presently under active investigation to explore their potential for generating laser action or broadband emission directly within the optical fiber structure. Additionally, a wide mode profile significantly re
Externí odkaz:
https://doaj.org/article/cc5ee1ce0b85421d8bc8fa6c76eaf852
Publikováno v:
Materials, Vol 16, Iss 4, p 1516 (2023)
Modified barium gallo-germanate glass hosts are still worthy of attention in studying structure–property relationships. In this work, two different series of glass systems based on (60-x)GeO2-xTiO2-30BaO-10Ga2O3 and (60-x)GeO2-xB2O3-30BaO-10Ga2O3 (
Externí odkaz:
https://doaj.org/article/37f0649316e84ebb808db5eeb9660d07
Autor:
Wojciech A. Pisarski
Publikováno v:
Materials, Vol 15, Iss 24, p 9042 (2022)
Borogermanate glasses singly doped with Dy3+ ions were synthesized and then studied using the absorption and luminescence spectra. Spectroscopic changes of Dy3+ ions have been examined for compositional-dependent glasses with various molar ratios GeO
Externí odkaz:
https://doaj.org/article/4ea92cbabdc64a039a6e5bbe114ab878
Publikováno v:
Nanomaterials, Vol 12, Iss 24, p 4500 (2022)
In this work, the series of Dy3+-doped silicate xerogels were synthesized by sol-gel technique and further processed at 350 °C into SiO2-LaF3:Dy3+ nano-glass-ceramic materials. The X-ray diffraction (XRD) measurements, along with the thermal analysi
Externí odkaz:
https://doaj.org/article/40e5669173bb4a5685476049e01b6e0d
Publikováno v:
Materials, Vol 16, Iss 1, p 61 (2022)
In this paper, the effect of the GeO2:TiO2 molar ratio in glass composition on the spectroscopic properties of germanate glasses was systematically investigated. The visible luminescence bands associated with characteristic 1D2 → 3H4 (red), 5S2, 5F
Externí odkaz:
https://doaj.org/article/a7b7034fde05408fb9a0cd9b7bf8b4ea
Autor:
Wojciech A. Pisarski
Publikováno v:
Materials, Vol 15, Iss 22, p 8099 (2022)
Glasses, glass-ceramics and ceramics belong to three important classes of engineering materials, which are useful in numerous multifunctional and industrial applications [...]
Externí odkaz:
https://doaj.org/article/4c4d7d8559fd49f5894657d15d0e3aa8