4-8 July 2016
Kramer Law building
Africa/Johannesburg timezone
The Proceedings of SAIP2016 published on 24 December 2017
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Spectroscopic investigation of Tm3+ containing Lithium borate glasses

Presented by Dr. Durgaprasad RAMTEKE on 8 Jul 2016 from 11:10 to 11:30
Type: Oral Presentation
Track: Track A - Division for Physics of Condensed Matter and Materials

Abstract

Rare earth (RE) oxides are currently used for a variety of optical applications due to their interesting 4f and 5d orbital properties. Tm2O3 RE oxide is very useful in biomedical applications such as tissue welding and ablation. Excitation at around 800 nm of materials doped with Tm2O3 generates emission bands near 1460 and 1860 nm. This feature allows it to be utilized for numerous applications. The broad emission around 1460 nm is useful for the development of an optical amplifier for uses in fiber-optic communication. By using the 1860 nm emission of Tm3+ it is possible to build a mid –infrared laser. Glass hosts can be utilized to attain both these properties. Among the available potential hosts, the lithium borate glasses are very interesting due to their easy formability, wide range of composition and good rare earth solubility. In the present study we investigated the spectroscopic properties of Tm3+ containing lithium borate glasses as a function of Tm3+ concentration. The physical properties were analyzed by using the density and molar volume of the glasses. The Judd-Ofelt theory were used to analyze the experimental data. The main focus of the present study was to study the effect of ion concentration on the two emission bands with peaks at 1460 nm (3F4 level) and 1860 nm (3H4 level).

Award

no

Level

n/a

Supervisor

HC Swart; swarthc@ufs.ac.za, University of the Free State

Paper

yes

Permission

yes

Place

Location: Kramer Law building
Address: UCT Middle Campus Cape Town
Room: LT1


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