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Sytsma, J.; Piehler, D.; Nm, Edelstein; Boatner, L. A.; Mm, Abraham

doi:10.1103/physrevb.47.14786

Cited by 27 publications

(11 citation statements)

References 30 publications

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“…Matsui et al [16] also reported the existence of three peaks from peak analysis of the Ce 3+ emission spectrum in Y 2 SiO 5 :Ce 3+ crystal. The difference between peaks 1 and 2 might correspond to the split (2000 cm À1 ) of 2 F 5/2 and 2 F 7/2 by spin-orbit interaction [15][16][17][18][19][20]. Peak 3 corresponds to the presence of Ce 3+ with CN = 7, whereas peaks 1 and 2 correspond to that with CN = 6 reported in the literature.…”

Section: Fluorescence Spectra Of the Cef 3 -Containing Oxide Fluoridementioning

confidence: 95%

Preparation and optical properties of CeF3-containing oxide fluoride glasses

Takahashi

Yonezawa

Kawai

et al. 2008

Journal of Fluorine Chemistry

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Cerium-containing oxide fluoride glasses CeF_3-BaF_2-AlF_3-SiO_2 were prepared under CO and Ar atmospheres. The glass prepared in CO exhibited blue emission under UV irradiation. Peak analyzes were performed to investigate their optical properties. The emission spectra were separable into three peak components by peak analysis. X-ray photoemission spectroscopy (XPS) spectra were measured to investigate the valency of the elements in the glass. Oxygen and fluorine in the glasses were more covalent and ionic than those in simple oxide and fluoride compounds. The cerium ion in the glass prepared in CO might be under a cationic condition whereas that in Ar might be under an anionic condition

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Section: Fluorescence Spectra Of the Cef 3 -Containing Oxide Fluoridementioning

confidence: 95%

Preparation and optical properties of CeF3-containing oxide fluoride glasses

Takahashi

Yonezawa

Kawai

et al. 2008

Journal of Fluorine Chemistry

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“…Regardless the temperature of a post-fabrication heat-treatment and the Eu ions concentration (0-15 %) only tetragonal, zircon-type xenotime structure with the space group I4 1 /amd, Z=4 were observed. In this structure there is only one Lu 3+ site with the D 2d local symmetry 31 , which is obviously adopted by the Eu 3+ activator ions. While the D 2d site symmetry is rather high it does not contain an inversion symmetry operation.…”

Section: Structural Analysismentioning

confidence: 99%

A new photoluminescent feature in LuPO₄:Eu thermoluminescent sintered materials

2016

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Nanocrystalline powders of LuPO4:Eu were prepared at 230 °C by hydrothermal method. Their post-treatment at 900, 1200 and 1350 °C induced a moderate grain growth from ∼20-50 nm up to 80-300 nm. These powders were sintered at 1700 °C and such LuPO4:Eu materials, despite the regular Eu 3+ emission, produced a broad-band luminescence peaking around 425 nm at room temperature. The sintered LuPO4:Eu materials generated also an intense thermoluminescence with maximum around 200 °C. The photoluminescence characteristics of the broad luminescence was performed in the 20-550 K range of temperatures. While the intensity of this emission did not change within 20-550 K its decay time dropped from ∼823 μs (20 K) to ∼7 μs only (550 K) with the most potent decrease between 150 and 300 K. At the same time the emission peak position moved from ∼438 nm (20 K) to ∼412 nm (550 K). These data were explained as resulting from a two-level emitting center with the higher state being thermally populated at the expense of the lower level.

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“…[1][2][3] On the other hand, the number of papers dealing with the interconfigurational nf N → nf N−1 ͑n +1͒d 1 transitions of the lanthanide ions is significantly smaller than that for f-f transitions. Moreover, in most cases, the structure of the observed 4f N → 4f N−1 5d 1 transitions has been rationalized in the simple one-electron model, suitable for Ce 3+ ions only, 4,5 or with the assumption that the excited configurations were formed by a coupling of the 5d orbitals, split by the crystalfield, with the 4f N−1 core electrons and lattice vibrations. [6][7][8] However, recently, a growing interest in rare-earths spectroscopy in the vacuum ultraviolet range may be observed.…”

Section: Introductionmentioning

confidence: 99%

4f6→4f55d1absorption spectrum analysis ofSm

2007

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The 4f 6 → 4f 5 5d 1 absorption spectrum of the Sm 2+ ions incorporated in a SrCl 2 single crystal was recorded at 4.2 K in the 15 000-45 000 cm −1 spectral range. The overall spectrum is very satisfactorily simulated by theoretical calculations performed in the frame of the semi-empirical Hamiltonian model. The calculations enabled the assignment of all bands observed in the spectrum as well as a prediction of some experimentally unobserved transitions in the 45 000-55 000 cm −1 region. The rich vibronic structure observed for absorption bands in the 15 000-25 000 cm −1 spectral region is dominated by the vibronic progressions in the totally symmetric Sr-Cl stretching mode of ϳ213 cm −1 upon the thirteen zero phonon lines and local vibration modes at ϳ81 cm −1 and ϳ116 cm −1 . This multiphonon vibronic spectrum is very well reproduced by the model calculation.

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Two-photon excitation of the 4f1→5d1transitions of

Cited by 27 publications

References 30 publications

Preparation and optical properties of CeF3-containing oxide fluoride glasses

Preparation and optical properties of CeF3-containing oxide fluoride glasses

A new photoluminescent feature in LuPO₄:Eu thermoluminescent sintered materials

4f6→4f55d1absorption spectrum analysis ofSm

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Two-photon excitation of the 4f1→5d1transitions of

Cited by 27 publications

References 30 publications

Preparation and optical properties of CeF3-containing oxide fluoride glasses

Preparation and optical properties of CeF3-containing oxide fluoride glasses

A new photoluminescent feature in LuPO4:Eu thermoluminescent sintered materials

4f6→4f55d1absorption spectrum analysis ofSm

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Product

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A new photoluminescent feature in LuPO₄:Eu thermoluminescent sintered materials