Paper
7 June 2000 Pulsed-laser deposition growth of SBN and correlation study of structure and optical properties
Felix E. Fernandez, Yelitza Gonzalez, Huimin Liu, Edgardo Rodriguez, Victor Rodriguez, Weiyi Jia
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Abstract
Strontium barium niobate thin films were grown by PLD and characterized as to their structure, composition, and both linear and nonlinear optical properties. Attempted composition of very nearly x equals 0.61 was achieved, as shown within experimental error of RBS and PIXE techniques. Films were deposited on MgO and fused silica substrates at a range of growth rates, while keeping other factors constant. Films with excellent texture, and oriented with the c-axis normal to the substrate surface where obtained on the MgO substrates. Films grown on fused silica showed a range of structures, from essentially amorphous to well oriented, again with c-axis normal to the substrate surface. The absorption edge of the films was determined to be substantially blue-shifted in comparison with bulk material. This effect appears to correlate with film microstructure, with more disordered films grown on glass showing the largest shifts. Degenerate four-wave-mixing techniques were used to study the nonlinear optical response of the amorphous films. A considerable enhancement, by 2 orders of magnitude, of the third order nonlinear susceptibility (Chi) (3) in transverse alignment was found to occur with respect to bulk values.
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Felix E. Fernandez, Yelitza Gonzalez, Huimin Liu, Edgardo Rodriguez, Victor Rodriguez, and Weiyi Jia "Pulsed-laser deposition growth of SBN and correlation study of structure and optical properties", Proc. SPIE 3933, Laser Applications in Microelectronic and Optoelectronic Manufacturing V, (7 June 2000); https://doi.org/10.1117/12.387556
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KEYWORDS
Absorption

Silica

Crystals

Glasses

Optical properties

Thin films

Strontium

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