Abstract
Lanthanum doped lead titanate (PLT) thin films with good surface morphology and perovskite structure were fabricated by the metalo-organic decomposition process. Their nonlinear optical property was investigated by Z-scan technique. PLT30 thin films on the quartz substrate display strong nonlinear optical effects. A nonlinear refractive index as high as 3.0×10−7 esu was obtained for the thin film. All the results show that PLT ferroelectric thin films are promising materials for nonlinear optics.
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