Journal
CHEMICAL PHYSICS LETTERS
Volume 523, Issue -, Pages 104-106Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2011.12.024
Keywords
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Funding
- National Natural Science Foundation of China [60878019, 11074016, 10821062, 10934001, 61177020, 10828407]
- National Basic Research Program of China [2009CB930504, 2007CB307001]
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The ultrafast third-order nonlinear optical properties of graphene in both suspension and film status are studied using femtosecond time resolved optical Kerr gate technique at 800 nm. The third-order nonlinear optical susceptibility is 4.2 x 10(-14) esu for solution of 0.010 mg/ml. The corresponding second-order hyperpolarizability is 3.4 x 10(-32) esu per carbon atom in graphene, which is the largest among the carbon family. The graphene embed in the polymer matrix of polyvinyl alcohol film (OD = 0.43) exhibits strong ultrafast nonlinear optical response of 3.3 x 10(-12) esu and shows its potential application in non-linear optics. (C) 2011 Elsevier B.V. All rights reserved.
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