Titanium dioxide film co-doped with yttrium and erbium and method for producing the same
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United States of America Patent
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Aug 5, 2003
Grant Date -
May 16, 2002
app pub date -
Apr 11, 2001
filing date -
Sep 18, 2000
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Abstract
A precursor composition of TiO.sub.2 doped with erbium (Er) and yttrium (Y) for forming a film used in a planar optical waveguide amplifier. The precursor composition includes 100 mol % TiO.sub.2 precursor compound, about 0.1-10 mol % erbium ion (Er.sup.3+) precursor compound, and about 1-50 mol % yttrium ion (Y.sup.3+) precursor compound, thereby forming a doped TiO.sub.2 film co-doped with erbium and yttrium an amorphous structure to achieve the enhancing effect on photoluminescence properties.
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