Autor: Stręk, W. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Spectroscopic ProPerties of Eu$\text{}^{3+}$ Ion in KEu(MoO$\text{}_{4}$)$\text{}_{2}$ Crystal
Autorzy:: Hanuza, J.
Macalik, L.
Macalik, B.
Stręk, W.
Powiązania:: https://bibliotekanauki.pl/articles/1929784.pdf
Data publikacji:: 1993-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.20.Wc
78.55.Hx
Opis:: IR, Raman, electron absorption and emission spectra of KEu(MoO$\text{}_{4}$)$\text{}_{2}$ crystal were measured at the temperature range 8-300 K. The oscillator strengths of f-f transitions were evaluated.
Źródło:: Acta Physica Polonica A; 1993, 84, 5; 895-898
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Electron Absorption and Emission Spectra of Eu$\text{}^{3+}$ in KEu(WO$\text{}_{4}$)$\text{}_{2}$
Autorzy:: Hanuza, J.
Macalik, L.
Macalik, B.
Stręk, W.
Powiązania:: https://bibliotekanauki.pl/articles/1929786.pdf
Data publikacji:: 1993-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.20.Wc
78.55.Hx
Opis:: Electron absorption and emission spectra of Eu$\text{}^{3+}$ ion in stoichiometric KEu(WO$\text{}_{4}$)$\text{}_{2}$ 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.
Źródło:: Acta Physica Polonica A; 1993, 84, 5; 899-902
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Vibronic Transitions in Centrosymmetric [Eu$\text{}_{x}$La$\text{}_{1-x}$(AP)$\text{}_{6}$](ClO$\text{}_{4}$)$\text{}_{3}$ Crystals
Autorzy:: Stręk, W.
Legendziewicz, J.
Huskowska, E.
Lukowiak, E.
Hanuza, J.
Powiązania:: https://bibliotekanauki.pl/articles/1929804.pdf
Data publikacji:: 1993-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.20.Wc
78.55.Hx
Opis:: The optical excitation and emission spectra of Eu(III) in [Eu$\text{}_{x}$La$\text{}_{1-x}$(AP)$\text{}_{6}$](ClO$\text{}_{4}$)$\text{}_{3}$ 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$\text{}_{x}$La$\text{}_{1-x}$(AP)$\text{}_{6}$](ClO$\text{}_{4}$)$\text{}_{3}$, the assignment of [Eu$\text{}_{x}$La$\text{}_{1-x}$(AP)$\text{}_{6}$](ClO$\text{}_{4}$)$\text{}_{3}$ 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.
Źródło:: Acta Physica Polonica A; 1993, 84, 5; 979-984
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Comparison of Optical Properties of Eu$\text{}^{3+}$ Ions in the Silica Gel Glasses Obtained by Different Preparation Techniques
Autorzy:: Legendziewicz, J.
Stręk, W.
Sokolnicki, J.
Keller, B.
Borzechowska, M.
Powiązania:: https://bibliotekanauki.pl/articles/1945686.pdf
Data publikacji:: 1996-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.20.Wc
78.55.Hx
71.55.Jv
Opis:: Silica sol-gel glasses doped with Eu$\text{}^{3+}$ ions were obtained by different preparation techniques. The absorption, emission and excitation spectra of the obtained glasses were measured in the range of 77-300 K. The energy level diagrams of Eu$\text{}^{3+}$ ions were derived. An intensity analysis of f-f transitions was performed. In particular, polymeric structure behaviour of europium compounds entrapped in silica gels glasses was temperature controlled during the preparation of glasses. Their optical properties were investigated.
Źródło:: Acta Physica Polonica A; 1996, 90, 2; 461-468
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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