Modulation of the nonlinear optical response by KNbO3 thin films deposited on a KTaO3 substrate

Huimin Liu; Weiyi Jia; Yanyung Wang; Y. Fu; Lynn A. Boatner

doi:10.1117/12.328620

4 December 1998 Modulation of the nonlinear optical response by KNbO₃thin films deposited on a KTaO₃ substrate

Huimin Liu, Weiyi Jia, Yanyung Wang, Y. Fu, Lynn A. Boatner

Proceedings Volume 3491, 1998 International Conference on Applications of Photonic Technology III: Closing the Gap between Theory, Development, and Applications; (1998) https://doi.org/10.1117/12.328620
Event: 1998 International Conference on Applications of Photonic Technology, 1998, Ottawa, Canada

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.

Citation Download Citation

Huimin Liu, Weiyi Jia, Yanyung Wang, Y. Fu, and Lynn A. Boatner "Modulation of the nonlinear optical response by KNbO₃thin films deposited on a KTaO₃ substrate", Proc. SPIE 3491, 1998 International Conference on Applications of Photonic Technology III: Closing the Gap between Theory, Development, and Applications, (4 December 1998); https://doi.org/10.1117/12.328620

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