Seshadri, M and Rao, K Venkata and Rao, J Lakshmana and Rao, KSR Koteswara and Ratnakaram, YC (2010) Spectroscopic investigations and luminescence spectra of Nd3+ and Dy3+ doped different phosphate glasses. In: Journal of Luminescence, 130 (4). pp. 536-543.
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Spectral properties of Nd3+ and Dy3+ ions in different phosphate glasses were studied and several spectroscopic parameters were reported. Covalency of rare-earth-oxygen bond was studied in these phosphate glass matrices with the variation of modifier in host glass matrix Using Judd-Ofelt intensity parameters (Omega(2), Omega(4) and Omega(6)), radiative transition probabilities (A) and radiative lifetimes (tau(R)) of certain excited states of Nd3+ and Dy3+ ions are estimated in these glass matrices. From the magnitudes of branching ratios (beta(R)) and integrated absorption cross-sections (Sigma), certain transitions of both the ions are identified for laser excitation. From the emission spectra, peak stimulated emission cross-sections (sigma(P)) are evaluated for the emission transitions observed in all these phosphate glass matrices for both Nd3+ and Dy3+ ions. (C) 2009 Elsevier B.V. All rights reserved.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Elsevier Science.|
|Keywords:||Rare-earth ions; Absorption spectrum; Transition probability; Lifetime; Emission cross-section|
|Department/Centre:||Division of Physical & Mathematical Sciences > Physics|
|Date Deposited:||29 Mar 2010 10:56|
|Last Modified:||19 Sep 2010 05:57|
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