Fluorescence and Nonradiative Properties of  Nd<sup>3+</sup>  in Novel Heavy Metal Contained Fluorophosphate Glass

Choi, Ju H.; Margaryan, Alfred; Margaryan, Ashot; Shi, Frank G.; Der Veer, Wytze Van

doi:https://doi.org/10.1155/2007/39892

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Volume 2007 | Article ID 039892 | https://doi.org/10.1155/2007/39892

Fluorescence and Nonradiative Properties of Nd³⁺ in Novel Heavy Metal Contained Fluorophosphate Glass

Ju H. Choi,¹Alfred Margaryan,²Ashot Margaryan,²Frank G. Shi,¹and Wytze Van Der Veer³

Academic Editor: Jongha Moon

Received15 Nov 2006

Accepted18 Feb 2007

Published30 Apr 2007

Abstract

We demonstrate new series of heavy metal containing fluorophosphate glass system. The fluorescence and nonradiative properties of Nd3+ ions are investigated as a function of Nd2O3 concentration. The variation of intensity parameters Ω2, Ω4, and Ω6 is determined from absorption spectra. The spontaneous probability (A) and branching ratio (β) are determined using intensity parameters. The emission cross sections for the 4F3/2→4I13/2 transition, which is calculated by Fuchtbabauer-Ladenburg method, decrease from 6.1×10−21 to 3.0×10−21(pm2) and those for the 4F3/2→4I11/2 transition decrease from 3.51×10−20 to 1.7×10−20 as Nd2O3 concentration increase up to 3 wt%. The nonradiative relaxation is analyzed in terms of multiphonon relaxation and concentration quenching due to energy transfer among Nd3+ ions. Finally, the above results obtained at 1 wt %Nd2O3 are compared with some of reported laser host glasses which indicated the potentials for broadband-amplifiers and high-power laser applications.

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Copyright © 2007 Ju H. Choi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Advances in OptoElectronics

Fluorescence and Nonradiative Properties of Nd3+ in Novel Heavy Metal Contained Fluorophosphate Glass

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Fluorescence and Nonradiative Properties of Nd³⁺ in Novel Heavy Metal Contained Fluorophosphate Glass