21 August 2014 Nonlinear optical and optical limiting properties of graphene oxide dispersion in femtosecond regime
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Abstract
The third-order nonlinear optical properties of graphene oxide (GO) dispersion in distilled water were investigated in femtosecond regime, using a single beam z-scan technique. Induced by a focused Gaussian beam (λ~800 nm) with 150 fs pulse duration, the graphene oxide shows strong nonlinear absorption, which was dominated by reverse saturable absorption (RSA), originates from two-photon absorption (TPA) in GO. In addition, the optical limiting performance of GO was experimentally derived, indicating that the occurrence of RSA make GO a candidate for optical limiting. In addition, the further increasing of input intensity would enhance the nonlinear scattering effects in the sample so that the optical limiting threshold was reached.
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Zebo Zheng, Zebo Zheng, Liang Zhu, Liang Zhu, Fuli Zhao, Fuli Zhao, } "Nonlinear optical and optical limiting properties of graphene oxide dispersion in femtosecond regime", Proc. SPIE 9283, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems, 92830V (21 August 2014); doi: 10.1117/12.2069886; https://doi.org/10.1117/12.2069886
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