Optical hole burning properties of europium-doped calcium bromide-based aluminoborate glasses

Liang, Hailian; Hanzawa, Hiromasa; Horikawa, Takashi; Machida, Ken‐ichi

doi:10.1016/j.jallcom.2007.03.010

Cited by 7 publications

(5 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These systems are also more than academically interesting: CaBr 2 is used in oil drilling brine solutions, as a desiccant, a food preservative, and fire retardant. Eu(III)-doped CaBr 2 -based aluminoborate glasses are candidate materials for use in lasers, optical amplifiers, and optical storage devices . Strontium bromide has been used as a vapor-phase laser .…”

Section: Introductionmentioning

confidence: 99%

“…Eu(III)-doped CaBr 2 -based aluminoborate glasses are candidate materials for use in lasers, optical amplifiers, and optical storage devices. 60 Strontium bromide has been used as a vapor-phase laser. 61 BaBr 2 singlecrystals are excellent X-ray storage phosphors when doped with lanthanide ions such as Eu(II) 62 or Ce(III) 63 and have recently been proposed for use in X-and γ-ray scintillation applications.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Solid-State ^79/81Br NMR and Gauge-Including Projector-Augmented Wave Study of Structure, Symmetry, and Hydration State in Alkaline Earth Metal Bromides

Widdifield

Bryce

2010

J. Phys. Chem. A

View full text Add to dashboard Cite

Bromine-79/81 solid-state NMR (SSNMR) spectroscopy is established as a tool to characterize the local structure and symmetry about bromide ions in inorganic systems. Benchmark experimental 79/81Br SSNMR data are acquired for CaBr2, SrBr2, BaBr2, MgBr2·6H2O, SrBr2·6H2O, BaBr2·2H2O, and CaBr2·xH2O using the Solomon echo and/or QCPMG pulse sequences in magnetic fields of 11.75 and 21.1 T. Analytical line-shape analysis provides 79/81Br electric field gradient (EFG) tensor parameters (including 79Br quadrupolar coupling constants, C Q(79Br), of up to 75.1(5) MHz in CaBr2), chemical shift tensor parameters (including the largest reported anisotropy), and the relative orientation of the tensor principal axis systems. These data are interpreted in terms of structure and symmetry. Our results indicate that ionic bromide systems should be generally accessible to characterization by 79/81Br SSNMR despite sizable quadrupolar interactions. The resolving capabilities of 79/81Br SSNMR spectroscopy are illustrated, using samples which possess up to four magnetically inequivalent sites, and through a rare example of 79Br magic-angle spinning NMR for a Br in a noncubic lattice. Bromine-79/81 SSNMR spectroscopy is demonstrated to be sensitive to the presence of hydrates (i.e., pseudopolymorphism), via drastic changes in C Q and δiso. The changes are diagnostic to an extent that the composition of the mixture CaBr2·xH2O is determined for the first time. This technique should therefore be applicable to characterize other unknown mixtures or polymorphs. Important instances where 79Br nuclear quadrupole resonance data were found to be deficient are noted and corrected. GIPAW DFT computations are shown to be generally in very good agreement with the experimental 79/81Br SSNMR observations. Finally, it is demonstrated that the origin of the EFG at the Br nuclei cannot be described quantitatively using a point charge model, even after including Sternheimer antishielding effects.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Solid-State ^79/81Br NMR and Gauge-Including Projector-Augmented Wave Study of Structure, Symmetry, and Hydration State in Alkaline Earth Metal Bromides

Widdifield

Bryce

2010

J. Phys. Chem. A

View full text Add to dashboard Cite

show abstract

“…The hypersensitive ratio between the integrated intensity of the induced electric-dipole 5 D 0 → 7 F 2 and induced magnetic-dipole 5 D 0 → 7 F 1 transitions can be used to test changes in the nature of the Eu 3+ local surroundings and in terms of covalence and polarizability. This ratio has been also related with the odd-parity CF parameters, in such a way that the intensity of the 5 D 0 → 7 F 2 transition would increase with the increase of local CF distortion around the Eu 3+ centers [6][7][8]. The Eu 3+ ion has the lowest excited level ( 5 D 0 ) of the 4f 6 configuration that situated below the 4f 5 5d configuration and shows very sharp emission lines from visible to the near-infrared region.…”

Section: Introductionmentioning

confidence: 99%

Photoluminescence of Eu3+, Tb3+ and Tm3+-doped transparent SiO2–Al2O3–LiF–GdF3 glass ceramics

Lakshminarayana

Qiu

2009

Journal of Alloys and Compounds

View full text Add to dashboard Cite

“…The hypersensitive ratio between the integrated intensity of the induced electric-dipole 5 D 0 → 7 F 2 and induced magneticdipole 5 D 0 → 7 F 1 transitions can be used to test changes in the nature of the Eu 3+ local surroundings and in terms of covalence and polarizability. This ratio has been also related to the odd-parity CF parameters, in such a way that the intensity of the 5 D 0 → 7 F 2 transition would increase with the increase of local CF distortion around the Eu 3+ centers [19][20][21][22]. The ground state of the Tb 3+ ion is 7 F 6 , with its other components forming the low-lying excited states.…”

Section: Introductionmentioning

confidence: 99%

Photoluminescence of Eu³⁺-, Tb³⁺-, Dy³⁺- and Tm³⁺-doped transparent GeO₂–TiO₂–K₂O glass ceramics

Lakshminarayana

Qiu

Brik

et al. 2008

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

In this paper, we present the photoluminescence properties of Eu3+-, Tb3+-, Dy3+- and Tm3+-doped potassium–titanium–germanate glasses and glass ceramics. Following the x-ray diffraction measurement, the glass structure was established. Compared to Eu3+-, Tb3+-, Dy3+- and Tm3+-doped glasses, their respective glass ceramics show stronger emissions due to the presence of the K2TiGe3O9 crystalline phase. For Eu3+-doped glass and glass ceramics, five emission bands centered at 578 nm , 592 nm , 614 nm , 653 nm and 702 nm have been observed with 394 nm excitation wavelength. Of them, 614 nm has shown a bright reddish-orange emission. For Tb3+-doped glass and glass ceramic, four emission bands centered at 490 nm , 549 nm , 586 nm and 621 nm have been observed with an excitation at 378 nm wavelength. Of them, 549 nm has shown a bright green emission. With regard to Dy3+:glass and glass ceramic, a blue emission band centered at 485 nm and a bright fluorescent yellow emission at 576 nm have been observed, apart from (665 nm) emission transition with an excitation at 387 nm , 4F7/2) wavelength. Emission bands of (650 nm) and (700 nm) transitions for the Tm3+:glass and glass ceramic, with excitation at (468 nm), have been observed. The stimulated emission cross sections of all the emission bands of Eu3+, Tb3+, Dy3+ and Tm3+:glasses and glass ceramics have been computed based on their measured Δλ (FWHM) and lifetimes (τm).

show abstract

Optical hole burning properties of europium-doped calcium bromide-based aluminoborate glasses

Cited by 7 publications

References 16 publications

Solid-State ^79/81Br NMR and Gauge-Including Projector-Augmented Wave Study of Structure, Symmetry, and Hydration State in Alkaline Earth Metal Bromides

Solid-State ^79/81Br NMR and Gauge-Including Projector-Augmented Wave Study of Structure, Symmetry, and Hydration State in Alkaline Earth Metal Bromides

Photoluminescence of Eu3+, Tb3+ and Tm3+-doped transparent SiO2–Al2O3–LiF–GdF3 glass ceramics

Photoluminescence of Eu³⁺-, Tb³⁺-, Dy³⁺- and Tm³⁺-doped transparent GeO₂–TiO₂–K₂O glass ceramics

Contact Info

Product

Resources

About

Optical hole burning properties of europium-doped calcium bromide-based aluminoborate glasses

Cited by 7 publications

References 16 publications

Solid-State 79/81Br NMR and Gauge-Including Projector-Augmented Wave Study of Structure, Symmetry, and Hydration State in Alkaline Earth Metal Bromides

Solid-State 79/81Br NMR and Gauge-Including Projector-Augmented Wave Study of Structure, Symmetry, and Hydration State in Alkaline Earth Metal Bromides

Photoluminescence of Eu3+, Tb3+ and Tm3+-doped transparent SiO2–Al2O3–LiF–GdF3 glass ceramics

Photoluminescence of Eu3+-, Tb3+-, Dy3+- and Tm3+-doped transparent GeO2–TiO2–K2O glass ceramics

Contact Info

Product

Resources

About

Solid-State ^79/81Br NMR and Gauge-Including Projector-Augmented Wave Study of Structure, Symmetry, and Hydration State in Alkaline Earth Metal Bromides

Solid-State ^79/81Br NMR and Gauge-Including Projector-Augmented Wave Study of Structure, Symmetry, and Hydration State in Alkaline Earth Metal Bromides

Photoluminescence of Eu³⁺-, Tb³⁺-, Dy³⁺- and Tm³⁺-doped transparent GeO₂–TiO₂–K₂O glass ceramics