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Proceedings Paper

Modulation of the nonlinear optical response by KNbO3 thin films deposited on a KTaO3 substrate
Author(s): Huimin Liu; Weiyi Jia; Yanyung Wang; Y. Fu; Lynn A. Boatner
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Paper Abstract

Fluorescence and time-resolved degenerate-four-wave-mixing (DFWM) techniques have been used to characterize the optical properties of KNbO3/KTaO3 superlattice grown by pulsed laser deposition on a KTaO3 substrate. The superlattice consisted of 8 layers with thicknesses of 40 nm (KTaO3) and 30 nm (KNbO3). In the fluorescence measurement a significant change of emission profile with the KNbO3 thin films deposited on the substrate has been observed. In DFWM measurements the time-resolved spectrum is characterized by a sharp coherent response signal peaked at the time of zero delay followed by a build-up of a longer- lived signal. The third-order susceptibility (chi) (3) was estimated to be dramatically increased by 2 orders of magnitude.

Paper Details

Date Published: 4 December 1998
PDF: 6 pages
Proc. SPIE 3491, 1998 International Conference on Applications of Photonic Technology III: Closing the Gap between Theory, Development, and Applications, (4 December 1998); doi: 10.1117/12.328620
Show Author Affiliations
Huimin Liu, Univ. of Puerto Rico/Mayaguez (United States)
Weiyi Jia, Univ. of Puerto Rico/Mayaguez (United States)
Yanyung Wang, Univ. of Puerto Rico/Mayaguez (United States)
Y. Fu, Univ. of Puerto Rico/Mayaguez (United States)
Lynn A. Boatner, Oak Ridge National Lab. (United States)


Published in SPIE Proceedings Vol. 3491:
1998 International Conference on Applications of Photonic Technology III: Closing the Gap between Theory, Development, and Applications

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