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. 2013 Nov 15;38(22):4574-7.
doi: 10.1364/OL.38.004574.

Giant electro-optic effect in nanodisordered KTN crystals

Yun-Ching Chang, Chao Wang, Shizhuo Yin, Robert C Hoffman, Andrew G Mott

Giant electro-optic effect in nanodisordered KTN crystals

Yun-Ching Chang et al. Opt Lett. .

Abstract

The electro-optic (EO) effect in nanodisordered potassium tantalate niobate (KTN) crystal is quantitatively investigated. It is found out that the EO coefficient of nanodisordered KTN crystal depends not only on the cooling temperature but also on the cooling rate. A larger EO coefficient can be obtained by employing a faster cooling rate. A Kerr EO efficient (s(11) - s(12) = 6.94 × 10(-14) m(2)/V(2)) is obtained at a cooling rate of 0.45 °C/s. The enhanced EO efficient by employing a faster cooling rate will be greatly beneficial for a variety of applications such as laser Q switches, laser pulse shaping, high-speed optical shutters, and modulating retroreflectors.

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