Share Email Print
cover

Proceedings Paper

Two-photon absorption and nonlinear optical properties in undoped and doped ferroelectric thin films
Author(s): Ming-Sheng Zhang; Wei-Feng Zhang; J. Zhang; Ping Zhang; Zhen Yin
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Barium titanate, Ce-doped barium titanate and La- and Zr-doped lead zirconate titanate thin films were prepared on fused-quartz substrate by laser pulsed deposition. The morphologies and microstructures of the films were examined by x-ray diffraction, scanning electron microscopy and transmission electron microscopy. The barium titanate and Ce-doped barium titanate thin films and Zr-doped lead zirconate titanate film are transparent respectively above 322 and 340 nm; while the corresponding optical band gaps are 3.46, 3.48 and 3.46eV. The two-photon absorptions coefficients for barium titanate and Ce-doped barium titanate thin films are very large, as large as 51.7 and 59.3 cm/GW, respectively. Nonlinear refractive index of PLZT film is 1.3 X 10-6 esu, much higher than organic polymers, CdS-doped glasses and high density Au-dispersed SiO2 composite films. The mechanisms for the strong nonlinear optic susceptibilities and large two-photon absorption appeared in barium titanate and Ce-doped barium titanate and Zr-doped lead zirconate titanate film are discussed. On the basis of first principle calculation the nonlinear optic susceptibility and nonlinear two-photon absorption in BaTiO3 was performed. The theoretical calculations are in good agreement with experimental results.

Paper Details

Date Published: 14 February 2003
PDF: 7 pages
Proc. SPIE 4797, Multiphoton Absorption and Nonlinear Transmission Processes: Materials, Theory, and Applications, (14 February 2003); doi: 10.1117/12.453485
Show Author Affiliations
Ming-Sheng Zhang, Nanjing Univ. (China)
Wei-Feng Zhang, Henan Univ. (China)
J. Zhang, Nanjing Univ. (China)
Ping Zhang, Stanford Univ. (United States)
Zhen Yin, Nanjing Univ. (China)


Published in SPIE Proceedings Vol. 4797:
Multiphoton Absorption and Nonlinear Transmission Processes: Materials, Theory, and Applications
A. Todd Yeates; Kevin D. Belfield; Stephen J. Caracci; Christopher M. Lawson; Francois Kajzar; A. Todd Yeates; Kevin D. Belfield; Stephen J. Caracci, Editor(s)

© SPIE. Terms of Use
Back to Top