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Proceedings Paper

Preparation of BaTiO3 thin films by double-pulse-lasers deposition
Author(s): Abdalla M. Darwish; Simeon Wilson; Hadi Alkahby; Brent Koplitz
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Paper Abstract

Epitaxial BaTiO3 films were deposited by using innovative double-pulse--lasers Deposition (DPLD) technique. The modified DPLD enables the ablation of batio3 thin film to be doped with Fe and Mn in situ during the ablation process. Different substrates were used like MgO, SrTiO3, and Si to decrease the misfit with BaTiO3. The films deposited at different substrate-temperature in the range of 200°C-800°C. The thin film surface morphology was investigated using both Atomic Force Microscope (AFM) and Reflection high Energy Electron Diffraction (RHEED). The substrate temperature and the oxygen gas pressure affected the morphology of the thin film and in turn the optical response of the thin film. The AFM reviled a new harmonic grating structure of the thin film due to the DPLD ablation. The thin film shows an anomalous response to the HeNe laser as a self-modulation and grating formation pattern were observed.

Paper Details

Date Published: 17 September 2011
PDF: 8 pages
Proc. SPIE 8120, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications V, 812009 (17 September 2011); doi: 10.1117/12.893185
Show Author Affiliations
Abdalla M. Darwish, Dillard Univ. (United States)
Simeon Wilson, Dillard Univ. (United States)
Hadi Alkahby, Dillard Univ. (United States)
Brent Koplitz, Tulane Univ. (United States)


Published in SPIE Proceedings Vol. 8120:
Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications V
Shizhuo Yin; Ruyan Guo, Editor(s)

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