Comparison of calculated and experimental electric dipole intensity parameters for europium tris(ethylsulfate) enneahydrate

1984 ◽  
Vol 80 (7) ◽  
pp. 3507-3509 ◽  
Author(s):  
Michael F. Reid ◽  
F. S. Richardson
Keyword(s):  
Electric Dipole ◽  
Intensity Parameters

Electric dipole intensity parameters for lanthanide 4f → 4f transitions

1983 ◽  
Vol 79 (12) ◽  
pp. 5735-5742 ◽  
Author(s):  
Michael F. Reid ◽  
F. S. Richardson
Keyword(s):  
Electric Dipole ◽  
Intensity Parameters

scholarly journals Calculation and Comparison of Energy Interaction and Intensity Parameters for the Interaction of Nd(III) with DL-Valine, DL-Alanine and β-Alanine in Presence and Absence of Ca2+/Zn2+ in Aqueous and Different Aquated Organic Solvents Using 4f-4f Transition Spectra as Probe

2009 ◽  
Vol 2009 ◽  
pp. 1-9 ◽  
Author(s):  
H. Debecca Devi ◽  
Ch. Sumitra ◽  
Th. David Singh ◽  
N. Yaiphaba ◽  
N. Mohondas Singh ◽  
...  
Keyword(s):  
Amino Acids ◽  
Oscillator Strength ◽  
Organic Solvents ◽  
Electric Dipole ◽  
Spectral Energy ◽  
Ligand Interaction ◽  
Energy Parameters ◽  
Energy Interaction ◽  
Intensity Parameters ◽  
Presence And Absence

Absorption difference and comparative absorption spectrophotometric studies involving 4f-4f transitions of Nd(III) and different amino acids: DL-valine, DL-alanine, and β-alanine in presence and absence of Ca(II) and Zn(II) in aqueous and different aquated organic solvents have been carried out. Variations in the spectral energy parameters: Slater-Condon (FK) factor, Racah (EK), Lande factor (ξ4f), nephelauxetic ratio (β), bonding (b1/2), percentage covalency (δ) are calculated to explore the mode of interaction of Nd(III) with different amino acids: DL-valine, DL-alanine, and β-alanine. The values of experimentally calculated oscillator strength (P) and computed values of Judd-Ofelt electric dipole intensity parameters, Tλ (λ = 2,4,6), are also determined for different 4f-4f transitions. The variation in the values of P and Tλ parameters explicitly shows the relative sensitivities of the 4f-4f transitions as well as the specific correlation between relative intensities, ligand structures, and nature of Nd(III)-ligand interaction.

Electric dipole intensity parameters for Pr3+ in LiYF4

1984 ◽  
Vol 31-32 ◽  
pp. 207-209 ◽  
Author(s):  
Michael F. Reid ◽  
F.S. Richardson
Keyword(s):  
Electric Dipole ◽  
Intensity Parameters

Lasing Efficiency of Nd3+-Doped Lead Tellurite Glass

2017 ◽  
Vol 268 ◽  
pp. 186-190
Author(s):  
K. Azman ◽  
Yahya Norihan ◽  
H. Azhan ◽  
S. Akmal Syamsyir ◽  
R.S. Nasuha
Keyword(s):  
Oscillator Strength ◽  
Electric Dipole ◽  
Tellurite Glass ◽  
Optical Behaviour ◽  
Ofelt Theory ◽  
Laser Efficiency ◽  
Lasing Efficiency ◽  
Optical Amplification ◽  
Intensity Parameters

Neodymium doped tellurite glass have been proven to be one of the most efficient candidates for photonic application. Nd3+ ions are well known excellent as lasing ions at 1.06μm. However, the efficiency of the lasing activity of the Nd3+ doped tellurite glass need for more discussion especially on the contribution of the atom-atom and atom-ligand bonding based on the Judd-Ofelt theory. Therefore, initiative has been taken in this work to determine the laser efficiency by mean of their oscillator strength and Judd-Ofelt parameters. In order to identify the optical behaviour, good quality of Nd doped tellurite glass should firstly be ready. From the results, it is found that the experimental and calculated oscillator strength results of the glass are found varies from 1.157 x 10-6 to 0.804 x 10-6 and from 2.527 x 10-6 to 2.243 x 10-6 respectively with respect to Nd2O3 composition. The small rms deviation ~10% indicates good fit between experimental and calculated oscillator strength. Meanwhile, the Judd-Ofelt intensity parameters with t = 2, 4 and 6 are found to vary with respect to mol% of Nd content. The 4F3/2→4I11/2 transition for 1.06μm emission which is useful for lasers and optical amplification is totally contributed from electric dipole whereas the magnetic dipole shows no effect. Some other results will be discussed in details.

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