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Growth, Microstructures and Optical Properties of KNbO3 Thin Films

Published online by Cambridge University Press:  21 February 2011

Thomas M. Graettinger ,
P. A. Morris ,
R. R. Woolcotit ,
F. C. Zumsteg ,
A. F. Chow  and
A. I. Kingon
Thomas M. Graettinger
Affiliation:
North Carolina State University, 1001 Capability Dr., Raleigh, NC 27695-7919
P. A. Morris
Affiliation:
DuPont Company, Experimental Station, Wilmington, DE 19880-0356
R. R. Woolcotit
Affiliation:
North Carolina State University, 1001 Capability Dr., Raleigh, NC 27695-7919
F. C. Zumsteg
Affiliation:
DuPont Company, Experimental Station, Wilmington, DE 19880-0356
A. F. Chow
Affiliation:
North Carolina State University, 1001 Capability Dr., Raleigh, NC 27695-7919
A. I. Kingon
Affiliation:
North Carolina State University, 1001 Capability Dr., Raleigh, NC 27695-7919
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Abstract

Potassium niobate, KNbO3, possesses high nonlinear optical coefficients making it a promising material for frequency conversion into the visible wavelength range. While epitaxial thin films of KNbO3 have been reported [1,2], only limited data exists concerning the optical loss mechanisms and nonlinear optical properties of these films. In this study, epitaxial thin films of KNbO3 have been grown using ion beam sputter deposition and evaluated in terms of their microstructures and optical properties. Characterization of the microstructures of these films includes the in-plane epitaxial relationship to the substrate. The relationships between the growth parameters and microstructures developed to the indices of refraction and the optical losses (absorption and scattering) are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 310: Symposium N – Ferroelectric Thin Films III , 1993 , 301
Copyright
Copyright © Materials Research Society 1993

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