Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Joanna Janek"'
Autor:
Agata Górny, Tomasz Goryczka, Joanna Janek, Ewa Pietrasik, Wojciech A. Pisarski, Marta Sołtys, Joanna Pisarska
Publikováno v:
Journal of Non-Crystalline Solids. 501:121-125
Oxyfluoride lead-based and lead-free germanate glasses were heat-treated in order to fabricate transparent glass-ceramics. Cubic β-PbF2 nanocrystals are well formed during crystallization of lead germanate glass. The up-conversion luminescence spect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7eb62fb86aa874fce0a1bd64ca00987
https://doi.org/10.1016/j.jnoncrysol.2018.01.005
https://doi.org/10.1016/j.jnoncrysol.2018.01.005
Autor:
Wojciech A. Pisarski, Joanna Janek, Marcin Kochanowicz, Dominik Dorosz, Jan Dorosz, Maciej Sitarz, Joanna Pisarska, Jacek Zmojda
Publikováno v:
Materials Letters. 216:131-134
Up-conversion luminescence of Er 3+ -doped oxyfluoride germanate optical fiber is observed under laser-diode excitation. The enhanced green emission line is due to 2 H 11/2 , 4 S 3/2 → 4 I 15/2 transition of Er 3+ . The integrated luminescence inte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f4b67720242a1e856778c95a9af766f
https://doi.org/10.1016/j.matlet.2018.01.012
https://doi.org/10.1016/j.matlet.2018.01.012
Autor:
Joanna Pisarska, Joanna Janek, Witold Ryba-Romanowski, Wojciech A. Pisarski, Radosław Lisiecki
Publikováno v:
Journal of Luminescence. 193:34-38
Temperature-dependent up-conversion luminescence spectra of Er 3+ in lead-free germanate glass have been examined under 800 nm and 980 nm diode laser excitation. Green up-conversion luminescence spectra measured in the 500–580 nm ranges correspond
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bf6ae29fd3bf2a62146a906d06519ac
https://doi.org/10.1016/j.jlumin.2017.09.003
https://doi.org/10.1016/j.jlumin.2017.09.003
Autor:
Joachim Kusz, Maciej Zubko, Barbara Hachuła, Wojciech A. Pisarski, Maria Książek, Joanna Janek, Oliwia Starczewska, Paweł Zajdel
Publikováno v:
CrystEngComm. 20:1739-1745
A new polymorph of oxindole (termed as “δ-form”) has been found and characterized by single-crystal X-ray diffraction. Its structural properties were compared with those of the previously reported polymorphs (the α-, β- and γ-forms). This pol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f760a7e83f5cbb6590f3fceafe8d524e
https://doi.org/10.1039/c7ce01237c
https://doi.org/10.1039/c7ce01237c
Publikováno v:
Optical Materials. 74:105-108
Up-conversion luminescence spectra of Er3+ ions in multicomponent oxyfluoride glasses GeO2 – BaO – BaF2 – Ga2O3 – Er2O3 were examined. It was found that the up-conversion luminescence spectra of Er3+ are dependent on pumping wavelengths. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bf9d08838bd75fe46f3394b25cb4653
https://doi.org/10.1016/j.optmat.2017.03.045
https://doi.org/10.1016/j.optmat.2017.03.045
Publikováno v:
Optical Materials. 61:59-63
Series of Eu 3+ -doped lead-free germanate and borate glasses were synthesized. The MO glass modifiers (M = Ca, Sr or Ba) were partially or totally substituted by MF 2 in chemical composition. In contrast to samples modified by CaO/CaF 2 or SrO/SrF 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c48118d1dc437fd7adf1328e11ef146a
https://doi.org/10.1016/j.optmat.2016.05.045
https://doi.org/10.1016/j.optmat.2016.05.045
Publikováno v:
Materials Chemistry and Physics. 180:237-243
Series of lead-free borate glasses with different oxide modifiers and lanthanide ions were prepared. The effect of oxide modifiers MO (M = Ca, Sr, Ba) on spectroscopic properties of trivalent Ln3+ (Ln = Eu, Er, Pr) were systematically investigated. E
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::025fc0638293a581e3f34b0afe9853a8
https://doi.org/10.1016/j.matchemphys.2016.06.001
https://doi.org/10.1016/j.matchemphys.2016.06.001
Publikováno v:
Journal of the American Ceramic Society. 99:2009-2016
Rare-earth-doped oxyfluoride germanate and borate glasses were synthesized and next studied using spectroscopic methods. Influence of fluoride modifier on luminescence properties of rare earths in different glass hosts was examined. The excitation an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3ec3b3ab5072a63bf93849848b4330a
https://doi.org/10.1111/jace.14223
https://doi.org/10.1111/jace.14223
Autor:
Wojciech A. Pisarski, Tomasz Goryczka, Lidia Żur, Marta Sołtys, Joanna Pisarska, Joanna Janek
Publikováno v:
Journal of Non-Crystalline Solids. 431:145-149
Rare earth doped lead-free oxide and oxyfluoride germanate glasses were synthesized. The rare earths as an optically active ions were limited to trivalent Eu3 +. One of the glass modifier components is MO (M = Ca, Sr or Ba), which was partially or to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86f05de7b6f67bdad6fdcef4d9f9f78d
https://doi.org/10.1016/j.jnoncrysol.2015.03.008
https://doi.org/10.1016/j.jnoncrysol.2015.03.008
Publikováno v:
Optical Materials. 40:91-96
New multicomponent europium-doped lead phosphate based glasses with various PbO:P 2 O 5 molar ratios were prepared and next studied using optical spectroscopy. Based on excitation and luminescence spectra measurements, some spectroscopic parameters l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92a8642e16a808f3e75b81de3b643dc8
https://doi.org/10.1016/j.optmat.2014.11.052
https://doi.org/10.1016/j.optmat.2014.11.052