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Nonlinear optical properties of graphene oxide in nanosecond and picosecond regimes

2009; American Institute of Physics; Volume: 94; Issue: 2 Linguagem: Inglês

10.1063/1.3068498

1520-8842

Zhibo Liu, Yan Wang, Xiao-Liang Zhang, Yanfei Xu, Yongsheng Chen, Jian‐Guo Tian,

Carbon Nanotubes in Composites

The nonlinear optical properties of graphene oxide (GO) were investigated at 532 nm in nanosecond and picosecond regimes. Results show that two-photon absorption dominates nonlinear absorption process of GO in the case of picosecond pulses, while excited state nonlinearities play an important role in the case of nanosecond pulses. Additionally, we compared nonlinear optical properties of three different dimensional carbon-based materials (two-dimensional graphene, one-dimensional carbon nanotube, and zero-dimensional fullerene) in nanosecond and picosecond regimes, respectively. The nonlinear mechanism of GO is distinctly different from nonlinear scattering of carbon nanotube and excited state nonlinearity of fullerene.