Journal ArticleDOI
Electronic Energy Levels in the Trivalent Lanthanide Aquo Ions. I. Pr3+, Nd3+, Pm3+, Sm3+, Dy3+, Ho3+, Er3+, and Tm3+
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TLDR
In this article, the free-ion energy-level schemes of the Pr3+, Nd3+, Pm3+, Sm3+, Dy3, Dy3+, Ho3+, Er3+, and Tm3+ aquo ions have been determined from their absorption spectra in dilute acid solution at 25°.Abstract:
The free‐ion energy‐level schemes of the Pr3+, Nd3+, Pm3+, Sm3+, Dy3+, Ho3+, Er3+, and Tm3+ aquo ions have been determined from their absorption spectra in dilute acid solution at 25°. Energy‐level assignments were made by comparison with crystal spectra, and on the basis of correlations between calculated and observed band intensities. For most of the ions, it was possible to identify several transitions giving rise to bands at energies as high as 45 000–50 000 cm−1. Sufficient numbers of assignments were made to justify inclusion of the effects of configuration interaction in the calculation of the energy‐level parameters. Variation of the electrostatic, spin–orbit coupling, and configuration‐interaction parameters across the lanthanide series is examined.read more
Citations
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Near-infrared emissions and quantum efficiencies in Tm3+-doped heavy metal gallate glasses for S- and U-band amplifiers and 1.8 μm infrared laser
TL;DR: In this article, Tm3+-doped alkali-barium-bismuth-gallate (LKBBG) glasses with low phonon energies under the excitation of 792-nm diode laser were used to obtain the maximum emission cross-sections for 1.8 and 1.48μm emission bands.
Journal ArticleDOI
Mechanisms of f–f hypersensitive transition intensities of lanthanide trihalide molecules: a spin–orbit configuration interaction study
TL;DR: In this paper, the authors examined the origin of the hypersensitive transition intensities in lanthanide trihalides and compared the two Judd-Ofelt intensity parameters: τ2(dc) by the dynamic coupling model and τ2ab by the spin-orbit configuration interaction (CI) method.
Journal ArticleDOI
Optical spectroscopy and energy transfer in Tm^3^+-doped metaphosphate laser glasses
TL;DR: In this paper, the authors measured the phonon sideband spectrum for 1.0 mol% Eu 3+ -doped metaphosphate glass of the same composition and compared with the Raman spectrum.
Journal ArticleDOI
Study on structural, optical and gain properties of 1.2 and 2.0 μm emission transitions in Ho3 + doped tellurite glasses
TL;DR: In this paper, a detailed study on spectroscopic properties of TBZLN glasses was performed by using a melt quenching technique and the results indicated that 1.0% Ho3+ doped TBZlN glass exhibits relatively better lasing properties than other reported glasses and is favorable for photonic applications.
Journal ArticleDOI
Studies of radiative and mechanical properties of Nd 3+ -doped lead fluorosilicate glasses for broadband amplification in a chirped pulse amplification based high power laser system
P. Manasa,D. Ramachari,Jakrapong Kaewkhao,P. Meejitpaisan,E. Kaewnuam,A.S. Joshi,C.K. Jayasankar +6 more
TL;DR: In this paper, the authors applied the Judd-Ofelt (JO) theory to the absorption spectrum of 1.0% Nd 3+ -doped lead fluorosilicate glass to estimate the JO intensity parameters (Ω λ, λ=2, 4 and 6).
References
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Journal ArticleDOI
Optical absorption intensities of rare-earth ions
TL;DR: In this paper, an expression for the oscillator strength of a transition between two states of the ground configuration $4{f}^{N}, on the assumption that the levels of each excited configuration of the type $4 {f} n{n}^{\ensuremath{'n}d$ or $4
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Intensities of Crystal Spectra of Rare‐Earth Ions
TL;DR: In this article, the transition probability of pure-electronic electric dipole transitions between levels of the 4-fluorescence configuration perturbed by a static crystalline field is treated.
Journal ArticleDOI
Spectral Intensities of the Trivalent Lanthanides and Actinides in Solution. II. Pm3+, Sm3+, Eu3+, Gd3+, Tb3+, Dy3+, and Ho3+
TL;DR: In this article, the experimentally determined band intensities in the solution absorption spectra of the trivalent lanthanides were correlated with a theoretical expression derived by Judd, and the spectra were measured in a single medium, dilute acid solution, and, in most cases, in the range ≈6000-50 000 cm−1.
Journal ArticleDOI
The Spectra of the Doubly and Triply Ionized Rare Earths
G. H. Dieke,H. M. Crosswhite +1 more
TL;DR: The present status of our knowledge of the structure of the spectra of the rare earths is derived partly from experimental data of the emission spectra, which provides the energy level scheme in great detail but are difficult and laborious to analyze.