Anisotropy electric and optical properties of PIMNT single crystal

Chongjun He; Ziyun Chen; Hongbing Chen; Tong Wu; Jiming Wang; Xiaorong Gu; Youwen Liu; Kongjun Zhu

doi:10.1117/1.JNP.12.046019

12 December 2018 Anisotropy electric and optical properties of PIMNT single crystal

Chongjun He, Ziyun Chen, Hongbing Chen, Tong Wu, Jiming Wang, Xiaorong Gu, Youwen Liu, Kongjun Zhu

Author Affiliations +

Journal of Nanophotonics, Vol. 12, Issue 4, 046019 (December 2018). https://doi.org/10.1117/1.JNP.12.046019

Abstract

Development work was conducted on ferroelectric materials that are widely used for optical modulation, light generation, optical filtering, and nanophotonic devices. Ferroelectric crystals with periodic variations in the second-order nonlinearity have been applied in laser frequency conversion, generation of entangled photons, and optical solitary wave devices. Here, we show electrical and optical characteristics of a ferroelectric crystal 0.25Pb(In_1/2Nb_1/2)O₃–0.42Pb(Mg_1/3Nb_2/3)O₃–0.33PbTiO₃ (short as PIMNT). The coercive field of PIMNT crystal with different orientation ranges from 4.9 to 5.8 kV / mm. Optical transmission and refractive indices of the crystal are investigated after being poled along different directions. The dispersion curves were fitted with Cauchy dispersion equations. The optical transmission of [011]-poled PIMNT single crystal is more than 65% above 0.5 μm, which is much higher than that of [001] and [111] directions. Orientation dependence of transition energies is presented in detail. Direct band gap, indirect band gap, and phonon energy can be adjusted with different orientations. The coercive field of PIMNT crystal is much lower than that of LiNbO₃ crystal (21 kV / mm). These results show that PIMNT single crystal is a promising candidate material in nanophotonics.

Citation Download Citation

Chongjun He, Ziyun Chen, Hongbing Chen, Tong Wu, Jiming Wang, Xiaorong Gu, Youwen Liu, and Kongjun Zhu "Anisotropy electric and optical properties of PIMNT single crystal," Journal of Nanophotonics 12(4), 046019 (12 December 2018). https://doi.org/10.1117/1.JNP.12.046019

Received: 14 April 2018; Accepted: 20 November 2018; Published: 12 December 2018

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