Nonlinear optical properties of (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 investigated by the femtosecond Z-scan technique

Xuejiao Zhang; Ningning Dong; Ruofan Zhang; Jianhua Zhang

doi:10.1117/1.OE.57.5.057103

10 May 2018 Nonlinear optical properties of (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 investigated by the femtosecond Z-scan technique

Xuejiao Zhang, Ningning Dong, Ruofan Zhang, Jianhua Zhang

Author Affiliations +

Optical Engineering, Vol. 57, Issue 5, 057103 (May 2018). https://doi.org/10.1117/1.OE.57.5.057103

Abstract

Nonlinear optical properties in La-modified ( 1-x ) Pb ( Mg_1/3Nb_2/3 ) O₃-xPbTiO₃ (PMN-PT) (3/75/25) transparent ceramic are studied. The optical nonlinearity is investigated employing Z-scan technique at the off-resonant wavelengths of 515 and 1030 nm. The two-photon absorption coefficient is measured up to be 9.6 cm / GW at 515 nm, and three-photon absorption coefficient is found to be 0.091 cm³ / GW² at 1030 nm. When an external electric field was applied to the PMN-PT, we found that the electric field increased from 0 to 3 kV / cm in the closed-aperture Z-scan experiment with the wavelength of 515 nm, whereas the nonlinear refractive index n₂ increased from 1.85 × 10^− 8 esu to 3.87 × 10^− 8 esu, an increase of 110%. The large nonlinear effect could be applied in areas such as sensor protection and telecommunications and to write permanent refractive index structures into the interior of optical materials, which may make a difference in integrate optoelectronic devices progress.

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Xuejiao Zhang, Ningning Dong, Ruofan Zhang, and Jianhua Zhang "Nonlinear optical properties of (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 investigated by the femtosecond Z-scan technique," Optical Engineering 57(5), 057103 (10 May 2018). https://doi.org/10.1117/1.OE.57.5.057103

Received: 29 January 2018; Accepted: 20 April 2018; Published: 10 May 2018

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