Full-text resources of PSJD and other databases are now available in the new Library of Science.
Visit https://bibliotekanauki.pl
Preferences help
Polish version English version Language
enabled [disable] Abstract
Number of results

Results found: 8

Number of results on page
first rewind previous Page / 1 next fast forward last

Search results

help Sort By:

help Limit search:
first rewind previous Page / 1 next fast forward last
1
Content available remote

Comparative Studies of Vibronic Transitions in One- and Two-Photon Spectra of Gd^{3+} in Cs_{2}NaGdCl_{6}

100%
Dereń P., Stręk W., Hanuza J.
Acta Physica Polonica A
|
1996
|
vol. 90
|
issue 2
295-300
EN
Vibronic spectra of Gd^{3+} in Cs_{2}NaGdCl_{6} were measured under one- and two-photon excitations. Following the vibrational analysis of the Cs_{2}NaGdCl_{6} crystal an assignment of vibronic transitions was proposed. It was found that the vibronic transitions in one- and two-photon spectra are combined with the odd parity modes.
2
Content available remote

Optical Spectra of Neodymium and Europium Tungstates and Molybdates

100%
Macalik L., Hanuza J., Legendziewicz J.
Acta Physica Polonica A
|
1993
|
vol. 84
|
issue 5
909-916
EN
Absorption and excitation spectra of lanthanides molybdates and tungstates were measured and analyzed. Probabilities of electronic transitions were analysed on the basis of the Judd-Ofelt theory. The significant differences of intensities were observed. Those differences could result from the symmetry changes, cooperative effects and electron-phonon interaction. The elucidation of intensities given by separate mechanisms needs further investigation.
3
Content available remote

Electron Absorption and Emission Spectra of Eu^{3+} in KEu(WO_{4})_{2}

100%
Hanuza J., Macalik L., Macalik B., Stręk W.
Acta Physica Polonica A
|
1993
|
vol. 84
|
issue 5
899-902
EN
Electron absorption and emission spectra of Eu^{3+} ion in stoichiometric KEu(WO_{4})_{2} were measured at the temperature range 15-300 K. The oscillator strengths of f-f transitions and the Judd-Ofelt parameters were evaluated. The assignment of vibronic transitions is given and mechanism of emission decay is discussed.
4
Content available remote

Spectroscopic ProPerties of Eu^{3+} Ion in KEu(MoO_{4})_{2} Crystal

100%
Hanuza J., Macalik L., Macalik B., Stręk W.
Acta Physica Polonica A
|
1993
|
vol. 84
|
issue 5
895-898
EN
IR, Raman, electron absorption and emission spectra of KEu(MoO_{4})_{2} crystal were measured at the temperature range 8-300 K. The oscillator strengths of f-f transitions were evaluated.
5
Content available remote

Vibronic Transitions in Centrosymmetric [Eu_{x}La_{1-x}(AP)_{6}](ClO_{4})_{3} Crystals

88%
Stręk W., Legendziewicz J., Huskowska E., Lukowiak E., Hanuza J.
Acta Physica Polonica A
|
1993
|
vol. 84
|
issue 5
979-984
EN
The optical excitation and emission spectra of Eu(III) in [Eu_{x}La_{1-x}(AP)_{6}](ClO_{4})_{3} centrosymmetric complex were measured. The vibronic transitions were observed in excitation and emission spectra. Following the vibrational analysis' of the infrared and Raman spectra of [Pr_{x}La_{1-x}(AP)_{6}](ClO_{4})_{3}, the assignment of [Eu_{x}La_{1-x}(AP)_{6}](ClO_{4})_{3} vibronics was given The concentration effect on excitation and emission spectra was investigated. It was found that the vibronic intensities were changed upon the concentration effect. The intensive charge transfer bands were observed in blue region. Their intensities decreased with increasing concentration.
6
Content available remote

Luminescence and Lifetimes of Pr^{3+} Excited States in KLa_{1-x}Pr_{x}(MoO_{4})_{2} and KLa_{1-x}Pr_{x}(WO_{4})_{2} Crystals

88%
Macalik L., Ryba-Romanowski W., Gołąb S., Hanuza J., Legendziewicz J.
Acta Physica Polonica A
|
1996
|
vol. 90
|
issue 2
301-306
EN
Single crystals of double molybdates and tungstates of the formula KLa_{1-x}Pr_{x}(MO_{4})_{2} (M = Mo, W) with a concentration of Pr^{3+} ions ranging from x=0.1 to x=0.005 have been prepared. Their electronic absorption and emission spectra have been measured and discussed as well as related to their crystal structures. Both the multiphonon relaxation and cross relaxation contribute to the decay of the ^{3}P_{0} level of Pr^{3+} in these two matrices.
7
Content available remote

Spectroscopic Studies of PrBr_{3}·7H_{2}O Monocrystal

88%
Oczko G., Legendziewicz J., Hanuza J., Gliński J., Macalik L.
Acta Physica Polonica A
|
1996
|
vol. 90
|
issue 2
431-438
EN
Single crystals of praseodymium tribromide heptahydrate were grown from aqueous solution. The IR, Raman, and high resolution absorption spectra were measured at room and low temperatures. The assignments of IR and Raman frequencies are reported. The temperature dependence of intensities was found and vibronic coupling in f-f transitions was analysed. Anisotropy of the intensities of optical lines was detected and taken into account in the Judd-Ofelt analysis of the f-f transitions probabilities. The results are compared to the available IR and electron spectroscopic data for other single crystals of lanthanide bromides.
8
Content available remote

Spectroscopic Studies of Neodymium and Europium Phosphoro-azo β-Diketonates

76%
Amirkhanov V., Ovchinnikov V., Legendziewicz J., Graczyk A., Hanuza J., Macalik L.
Acta Physica Polonica A
|
1996
|
vol. 90
|
issue 2
455-460
EN
New complexes of lanthanides (Nd, Eu) with phosphoro-azo derivatives of β-diketones were synthesized. Optical properties of these compounds were investigated and confronted with the structure and single crystal spectra of different types of earlier reported lanthanide phosphoro-azo-β-diketonates. The exchange of the N-P-O-Me ligand group by the N-P-NR_{2} one plays only a minor role in binding character of lanthanide ions but strongly affects biological functions and properties of lanthanide systems. In vitro experiment on cytotoxicity of the samples was performed using 10T_{1/2}, L_{1}, MCF, DETA and Meω-132 cell lines.
first rewind previous Page / 1 next fast forward last
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.