Please use this identifier to cite or link to this item: https://doi.org/10.1364/OE.17.010970
Title: Femtosecond third-order optical nonlinearity of polycrystalline BiFeO 3
Authors: Gu, B.
Wang, Y. 
Wang, J. 
Ji, W. 
Issue Date: 22-Jun-2009
Citation: Gu, B., Wang, Y., Wang, J., Ji, W. (2009-06-22). Femtosecond third-order optical nonlinearity of polycrystalline BiFeO 3. Optics Express 17 (13) : 10970-10975. ScholarBank@NUS Repository. https://doi.org/10.1364/OE.17.010970
Abstract: We report both linear and nonlinear optical properties of a ferroelectric thin film of polycrystalline BiFeO 3 deposited on a quartz substrate. The linear refraction index and absorption coefficient of the film are determined as a function of light wavelength by optical transmittance measurements. By performing Z-scan experiments with femtosecond laser pulses at a wavelength of 780 nm, the third-order nonlinear refraction index and two-photon absorption (2PA) coefficient are measured to be 1. 5 × 10 -4cm2/GW and 16 cm/GW, respectively. The results indicate that the thin film of polycrystalline BiFeO 3 is a promising candidate for applications in nonlinear photonic devices. © 2009 Optical Society of America.
Source Title: Optics Express
URI: http://scholarbank.nus.edu.sg/handle/10635/86329
ISSN: 10944087
DOI: 10.1364/OE.17.010970
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