Electronic Energy Levels in the Trivalent Lanthanide Aquo Ions. I. Pr3+, Nd3+, Pm3+, Sm3+, Dy3+, Ho3+, Er3+, and Tm3+

Carnall, W. T.; Fields, P. R.; Rajnak, K.

doi:10.1063/1.1669893

Cited by 2,857 publications

(804 citation statements)

References 49 publications

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“…The three V u parameters (u =2, 4 and 6) were obtained by fitting with a least- Table 1 Assignments and oscillator strengths P for the f f transitions in the absorption spectra of the 19ZnO-80TeO 2 squares method the electric dipole contributions of the experimental oscillator strengths of the observed transitions to the calculated ones. The matrix elements given by Carnall et al [18] were employed in the calculation and the value n= 2.08 was used for the refractive index [19]. Magnetic dipole contributions were subtracted from the observed oscillator strengths using the procedure described elsewhere [20].…”

Section: Absorption Spectra and Judd-ofelt Analysismentioning

confidence: 99%

Optical spectroscopy of lanthanide ions in ZnO–TeO2 glasses

Rolli

Gatterer

Wachtler

et al. 2001

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

126

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Zinc tellurite glasses of compositions 19ZnO-80TeO 2 -1Ln 2 O 3 with Ln= Eu, Er, Nd and Tm were prepared by melt quenching. The absorption spectra were measured and from the experimental oscillator strengths of the f f transitions the Judd-Ofelt parameters V u were obtained. The values of the V u parameters are in the range usually observed for oxide glasses. For Nd 3 + and Er 3 + , luminescence spectra in the near infrared were measured and the stimulated emission cross sections | p were evaluated for some laser transitions. The high values of | p , especially for Nd 3 + , make them possible candidates for optical applications. Fluorescence line narrowing (FLN) spectra of the Eu 3 + doped glass were measured at 20 K, and the energies of the Stark components of the 7 F 1 and 7 F 2 states were obtained. A crystal field analysis was carried out assuming a C 26 site symmetry. The behaviour of the crystal field ratios B 22 /B 20 and B 44 /B 40 agrees reasonably well with the values calculated using the geometric model proposed by Brecher and Riseberg. The crystal field strength at the Eu 3 + sites appears to be very low compared to other oxide glasses.

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Section: Absorption Spectra and Judd-ofelt Analysismentioning

confidence: 99%

Optical spectroscopy of lanthanide ions in ZnO–TeO2 glasses

Rolli

Gatterer

Wachtler

et al. 2001

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

126

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“…Since these reduced matrix elements are host invariant, we have used the values reported by Carnall et al [22]. The values of experimental and theoretical oscillator strengths along with their rms deviations are presented in Table 6.…”

Section: According To Judd-ofelt Theory [20 21] the Oscillator Strenmentioning

confidence: 99%

Effect of Nd3 + concentration on the physical and absorption properties of sodium-lead-borate glasses

Mohan¹,

Thind²,

Sharma³

2007

Braz. J. Phys.

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The effect of increasing the rare earth ion concentration on the physical and spectroscopic properties of Nd 3+ doped sodium-lead-borate glasses have been studied for the compositions (10-x) Na 2 O-30PbO-60B 2 O 3 -xNd 2 O 3 , where x = 1.00, 1.25, 1.50, 1.75 and 2.00 mol %. Optical band gaps, cut-off wavelengths and various spectroscopic parameters (E 1 , E 2 , E 3 , F 2 , F 4 , F 6 and ξ 4 f ) have been determined from the room temperature absorption spectra. Judd-Ofelt theory has been employed to determine the intensity parameters Ω 2 , Ω 4 and Ω 6 which in turn are used to evaluate radiative transition probability (A), branching ratio (β) and radiative lifetime (τ R ) for the fluorescent level 4 F 3/2 . The Ω 2 parameter and hence the non-symmetric component of electric field acting on Nd 3+ ion is found to be highest for glass with 1.75 mol% of Nd 2 O 3 . Because of the poor resolution of hypersensitive transition, the covalency of the Nd-O bond has been characterized by the relative intensity of 4 I 9/2 → 4 F 7/2 , 4 S 3/2 . The highest covalency has been predicted for glass with 2 mol% Nd 2 O 3 . The radiative properties are found to improve with an increase in concentration of Nd 2 O 3 for the present study.

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“…Nd in aqueous solution [14]. In the case of overlapping The Judd-Ofelt intensity parameters can be used to transitions, the matrix elements of the corresponding calculate several radiative properties of the lanthanide ions.…”

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confidence: 99%

Optical properties of Nd3+-doped fluorophosphate glasses

Binnemans

Deun

Görller‐Walrand

et al. 1998

Journal of Alloys and Compounds

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31Optical absorption spectra of Nd -doped fluorophosphate glasses of the type 75NaPO -24AF-1NdF (A5Li, Na, K) and of the type phenomenological Judd-Ofelt intensity parameters V (l52, 4 and 6). With the knowledge of these intensity parameters, the probability l for spontaneous emission, the branching ratios and the radiative lifetime are calculated. The relation between the spectral intensities and the glass composition is discussed. The optical properties of the fluorophosphate glasses are compared with those of phosphate and fluoride glasses. It is shown that the choice of the cation only has a minor influence on the spectral intensities. The spectral behaviour of the fluorophosphate glasses is intermediate between the spectral behaviour of pure phosphate and fluoride glasses. © 1998 Elsevier Science S.A.

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Electronic Energy Levels in the Trivalent Lanthanide Aquo Ions. I. Pr3+, Nd3+, Pm3+, Sm3+, Dy3+, Ho3+, Er3+, and Tm3+

Cited by 2,857 publications

References 49 publications

Optical spectroscopy of lanthanide ions in ZnO–TeO2 glasses

Optical spectroscopy of lanthanide ions in ZnO–TeO2 glasses

Effect of Nd3 + concentration on the physical and absorption properties of sodium-lead-borate glasses

Optical properties of Nd3+-doped fluorophosphate glasses

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