Nonlinear optical properties of graphene oxide in nanosecond and picosecond regimes
Nonlinear optical properties of graphene oxide in nanosecond and picosecond regimes
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纳秒和皮秒范围内氧化石墨烯的非线性光学特性
DOI：
10.1063/1.3068498
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发表时间：
2009-01-12
影响因子：
4
通讯作者：
Tian, Jianguo
中科院分区：
文献类型：
--
作者：
Liu, Zhibo;Wang, Yan;Tian, Jianguo
研究了氧化石墨烯（GO）在532 nm处的纳秒和皮秒非线性光学性质。结果表明，在皮秒脉冲下，GO的非线性吸收过程主要是双光子吸收，而在纳秒脉冲下，激发态非线性吸收起着重要作用.此外，我们比较了三种不同尺寸的碳基材料（二维石墨烯，一维碳纳米管，和零维富勒烯）在纳秒和皮秒制度下的非线性光学性质，分别。GO的非线性机制与碳纳米管的非线性散射和富勒烯的激发态非线性有明显的不同。
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.