Zobrazeno 1 - 10
of 99
pro vyhledávání: '"Z. Frukacz"'
Autor:
Dmitry Yu. Sugak, Andriy Durygin, A. O. Matkovskii, Ya. Zhydachevskii, Z. Frukacz, Andrzej Suchocki
Publikováno v:
physica status solidi (c). 1:312-316
The paper presents results of thermally stimulated luminescence (TSL) studies of YAlO 3 crystals both pure and doped with rare-earth (Ho 3 + , Tm 3 + , Er 3 + ) and Mn ions performed in the 20-600 K temperature range. The activation energy and freque
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90eac926b045e16f007118e542567a5e
https://doi.org/10.1002/pssc.200303934
https://doi.org/10.1002/pssc.200303934
Autor:
Michal Malinowski, M.-F Joubert, I. Pracka, M. Kaczkan, Geneviève Chadeyron, A. Wnuk, Z. Frukacz
Publikováno v:
Journal of Alloys and Compounds. 341:353-357
Infra-red to visible wavelength up-conversion is reported for trivalent holmium ion (Ho3+) doped: YAP, YAG, YLF, SrLaGa3O7 and SrLaGaO4 crystals and ZBLAN glass. The spectra and possible mechanisms of up-conversion are discussed. Changing of the holm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bba9f0e1baf253bf9e7119cc014f76e6
https://doi.org/10.1016/s0925-8388(02)00036-1
https://doi.org/10.1016/s0925-8388(02)00036-1
Autor:
Z. Frukacz, Stephan Guy, Geneviève Chadeyron, A. Wnuk, Marie-France Joubert, Michal Malinowski, Rachid Mahiou
Publikováno v:
Journal of Alloys and Compounds. :731-735
Upconverted, green emission from the 5 S 2 level of Ho 3+ ion in two oxides, YAG and YAP, and two fluorides, YLF and ZBLAN, was observed at room temperature under cw 580–590 nm excitation. Under these excitation wavelengths, which are off resonance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::424854676934cc7bca3e22952a9081e3
https://doi.org/10.1016/s0925-8388(01)01064-7
https://doi.org/10.1016/s0925-8388(01)01064-7
Publikováno v:
Journal of Alloys and Compounds. :736-739
Upconverted green–yellow emission has been generated at room temperature in Y 3 Al 5 O 12 :Sm 3+ crystals after pulsed 925–950 nm infra-red excitation. The dynamics of the involved excited states were analyzed under pulsed laser excitation. The u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c900f32c0074f048305dbc27642dc7b
https://doi.org/10.1016/s0925-8388(01)01066-0
https://doi.org/10.1016/s0925-8388(01)01066-0
Publikováno v:
Journal of Alloys and Compounds. :389-394
We report the optical properties of Y3Al5O12 (YAG) crystal doped with Ho3+ ions. Absorption, emission, and lifetime measurements have been performed and discussed using Judd–Ofelt theory. Visible emissions from the 3D3 (at about 33 000 cm−1), 5S2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c459777b072e90b324373cc0951c745
https://doi.org/10.1016/s0925-8388(99)00770-7
https://doi.org/10.1016/s0925-8388(99)00770-7
Autor:
Krzysztof Kopczynski, Ryszard Stepien, Kazimierz Jędrzejewski, J. Kisielewski, A. Gietka, Z. Frukacz, Zygmunt Mierczyk, Mirosław Kwaśny, T. Łukasiewicz
Publikováno v:
Journal of Alloys and Compounds. :398-406
There is considerable interest in compact pulsed high peak power laser sources emitting at wavelengths near 1.55 μm. Rangefinders and other applications with free space propagation could be a benefit of such devices. The wavelength of around 1.55 μ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7985139d0031d450e765c217316ed917
https://doi.org/10.1016/s0925-8388(99)00746-x
https://doi.org/10.1016/s0925-8388(99)00746-x
Autor:
Anna Tyszka-Zawadzka, I. Pracka, Ryszard Piramidowicz, Z. Frukacz, Michal Malinowski, Pawel Szczepanski, Agnieszka Mossakowska-Wyszynska
Publikováno v:
Scopus-Elsevier
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fefba81d1a1badc081acfb153d90e45
https://doi.org/10.12693/aphyspola.97.295
https://doi.org/10.12693/aphyspola.97.295
Autor:
Rachid Mahiou, Michal Malinowski, Ryszard Piramidowicz, Marie-France Joubert, Z. Frukacz, Geneviève Chadeyron
Publikováno v:
Optical Materials. 12:409-423
Emission from the high lying excited states, energy transfer, and upconversion processes are investigated in YAlO 3 :Ho 3+ . Selectively excited emission spectra in the range from 300 to 800 nm starting from the 3 D 3 , 3 G 5 , 5 F 3 , 5 S 2 and 5 F
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::892ecc09d6f1b72ec24048dd7709dbaa
https://doi.org/10.1016/s0925-3467(98)00081-0
https://doi.org/10.1016/s0925-3467(98)00081-0
Publikováno v:
Journal of Alloys and Compounds. :365-368
The color centers, which are generated in yttrium–aluminium perovskite YAP:Nd(1 at.%) and YAP:Er(50 at.%) crystals under the influence of ultraviolet and γ-irradiation, have been studied by absorption spectroscopy. Both stable and transient at roo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10bef2cbfe08de518ef733937b81f615
https://doi.org/10.1016/s0925-8388(98)00341-7
https://doi.org/10.1016/s0925-8388(98)00341-7
Publikováno v:
Journal of Alloys and Compounds. :361-364
Y 3 Al 5 O 12 single crystals doped with praseodymium and magnesium ions have been prepared. The reversible color change of these crystals are observed when annealing in oxidizing or reducing atmospheres. The change is ascribed to the formation of Pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07f698f1cdc0cfffcd99530d348731e3
https://doi.org/10.1016/s0925-8388(98)00340-5
https://doi.org/10.1016/s0925-8388(98)00340-5