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Blue Light by Second Harmonic Generation in Epitaxial PbTiO3 Thin Film Waveguide

Published online by Cambridge University Press:  15 February 2011

Wei-Yung Hsu and
R. Raj
Wei-Yung Hsu
Affiliation:
Cornell University, Department of Materials Science and Engineering, Ithaca, NY14853
R. Raj
Affiliation:
Cornell University, Department of Materials Science and Engineering, Ithaca, NY14853
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Abstract

Epitaxial PbTiO3 thin films have been grown on MgO substrate. The as grown PbTiO3 thin films were multi-domain with the existence of a-domain and c-domain. The amount of adomain can be reduced with the application SrTiO3 transitional layer, which also improve the crystalline quality and thus the nonlinear optical properties. Blue light generation in the PbTiO3/SrTiO3/MgO heterostructure was demonstrated based on waveguide mode dispersion.

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