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Nucleation of Titania Nanocrystals in Silica Titania Waveguides
SiO2(1 − x)-TiO2(x) monomode waveguides at 632.8 nm, with x in the range 0.07–0.2 and thickness of about 0.4 μm, were deposited on silica substrates by a dip-coating technique. Nucleation of TiO2 nanocrystals and...