Abstract
Abstract Ferroelectric bismuth titanate thin films have been deposited on LaAlO3, SrTiO3, MgO, A12O3, and ZrO2/SiO2/Si substrates using a Q-switched Nd:YAG laser. X-ray diffraction studies show that most films on single crystal substrates have preferential crystallographic orientation. The film on MgO(110) shows large electro-optic characteristics with an effective electro-optic coefficient of about 3.8×10−-15 m2/V2. Using a lens coupling method, it is demonstrated that light can propagate along the Bi4Ti3O12 layer in a Bi4Ti3O12/ZrO2/SiO2/Si(100) heterostructure.
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