Autor: Macalik, L. - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Optical Spectra of Neodymium and Europium Tungstates and Molybdates
Autorzy:: Macalik, L.
Hanuza, J.
Legendziewicz, J.
Tematy:: 33.60.Cv
33.50.Dq
33.70.Ca
78.20.Dj; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/1929790.pdf Link otwiera się w nowym oknie
Opis:: 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.
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

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.
Tematy:: 78.20.Wc
78.55.Hx; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/1929784.pdf Link otwiera się w nowym oknie
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.
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

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.
Tematy:: 78.20.Wc
78.55.Hx; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/1929786.pdf Link otwiera się w nowym oknie
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.
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Spectroscopic Studies of PrBr$\text{}_{3}$·7H$\text{}_{2}$O Monocrystal
Autorzy:: Oczko, G.
Legendziewicz, J.
Hanuza, J.
Gliński, J.
Macalik, L.
Tematy:: 78.20.Wc
78.55.Hx
78.20.Dj
78.66.-w; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/1945660.pdf Link otwiera się w nowym oknie
Opis:: 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.
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

Tytuł:: Luminescence and Lifetimes of Pr$\text{}^{3+}$ Excited States in KLa$\text{}_{1-x}$Pr$\text{}_{x}$(MoO$\text{}_{4}$)$\text{}_{2}$ and KLa$\text{}_{1-x}$Pr$\text{}_{x}$(WO$\text{}_{4}$)$\text{}_{2}$ Crystals
Autorzy:: Macalik, L.
Ryba-Romanowski, W.
Gołąb, S.
Hanuza, J.
Legendziewicz, J.
Tematy:: 78.55.Hx
78.20.Wc; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/1945617.pdf Link otwiera się w nowym oknie
Opis:: Single crystals of double molybdates and tungstates of the formula KLa$\text{}_{1-x}$Pr$\text{}_{x}$(MO$\text{}_{4}$)$\text{}_{2}$ (M = Mo, W) with a concentration of Pr$\text{}^{3+}$ 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 $\text{}^{3}$P$\text{}_{0}$ level of Pr$\text{}^{3+}$ in these two matrices.
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 6.

Tytuł:: Spectroscopic Studies of Neodymium and Europium Phosphoro-azo β-Diketonates
Autorzy:: Amirkhanov, V.
Ovchinnikov, V.
Legendziewicz, J.
Graczyk, A.
Hanuza, J.
Macalik, L.
Tematy:: 78.20.Wc
78.55.Hx
78.20.Dj; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/1945685.pdf Link otwiera się w nowym oknie
Opis:: 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$\text{}_{2}$ 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$\text{}_{1}\text{}_{/}\text{}_{2}$ , L$\text{}_{1}$, MCF, DETA and Meω-132 cell lines.
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 7.

Tytuł:: Structural and Optical Characterisation of Hydrogenated Soda-Lime Silicate Glasses Doped with Silver and Copper
Autorzy:: Suszyńska, M.
Krajczyk, L.
Macalik, B.
Tematy:: 61.43.Fs
64.75.+g
68.37.Lp
78.20.-e
78.40.Ha; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/2037038.pdf Link otwiera się w nowym oknie
Opis:: The results of comparative studies of the effect of hydrogenation upon structural and optical properties of the commercial soda-lime silicate glasses doped either with monovalent silver or copper have been presented. The samples were characterised by means of the scanning and transmission electron microscopy and the UV-VIS-IR absorption spectroscopy. It has been shown that the annealing of suitably ion-exchanged specimens in gaseous hydrogen atmosphere could be considered as an effective procedure for obtaining composite materials of expected properties correlated with the induced changes of the morphology of both the glassy matrix and the dopant.
Dostawca treści:: Biblioteka Nauki

Artykuł

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