Mancuso, Carmela (2001) Energy transfer and waveguide studies of Eu3+ and Tb3+ doped 2 SiO2-TiO2 glass prepared via the sol-gel route. Masters thesis, Concordia University.
In recent years, waveguide studies have played an active role in the telecommunication industry. High doping concentrations are essential in the manufacture of short and compact optical amplifiers, yet quenching can reduce the performance of the amplifier. Sol-gel chemistry, combined with the dip-coating method is a means to develop rare-earth doped planar waveguides for such integrated optics components. The sol-gel process involves three main steps: first, a metal alkoxide (Si-alkoxide) in alcohol-based medium undergoes hydrolysis at a predetermined pH; the next step involves condensation, where Si-OH tetrahedra linkages occur and eventually result in an SiO 2 network. The third step involves solvent evaporation to eliminate residual organics and hydroxyl groups within the pores of the gel. This thesis reports on the luminescence properties of Eu 3+ and Tb 3+ within the SiO 2 -TiO 2 host prepared via the sol-gel method with both H 2 O and D 2 O hydrolyzed systems. Sol-gel synthesis and dip-coating methods were used to develop a planar waveguide for a 5 mol % europium sample in the aforementioned host.
|Divisions:||Concordia University > Faculty of Arts and Science > Chemistry and Biochemistry|
|Item Type:||Thesis (Masters)|
|Pagination:||xii, 96 leaves : ill. (some col.) ; 29 cm.|
|Degree Name:||Theses (M.Sc.)|
|Program:||Chemistry and Biochemistry|
|Thesis Supervisor(s):||Capobianco, John A.|
|Deposited By:||Concordia University Libraries|
|Deposited On:||27 Aug 2009 13:20|
|Last Modified:||08 Dec 2010 10:21|
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