10 May 2018 Nonlinear optical properties of (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 investigated by the femtosecond Z-scan technique
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Abstract
Nonlinear optical properties in La-modified   (  1-x  )  Pb  (  Mg1/3Nb2/3  )  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.
© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE)
Xuejiao Zhang, Ningning Dong, Ruofan Zhang, 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 Submission: Received 29 January 2018; Accepted 20 April 2018
Submission: Received 29 January 2018; Accepted 20 April 2018
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