Journal
DIAMOND AND RELATED MATERIALS
Volume 89, Issue -, Pages 239-245Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.diamond.2018.09.009
Keywords
Graphene; Non-linear optics; Nano-composites
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Funding
- AFRL/RXAP Research Contract with General Dynamics Information Technology (GDIT) [FA8650-16-D-5402]
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Graphene shows remarkable non-linear optical behavior. Above a particular incident light intensity threshold, transmission is attenuated. Unfortunately, capitalizing on the unique properties of graphene can be a challenge because the material itself is hard to handle, unless it is integrated with other materials. The purpose of this work is to develop graphene-based nano-composites for non-linear optical applications. Few and single layer graphene flakes were synthesized through liquid phase exfoliation of graphite in 1-Methyl-2-pyrrolidinon (NMP), and characterized via Raman and transmission electron microscopy. Synthesis parameters for stable, high quality graphene suspensions were identified and graphene was integrated into nano-composites prepared via sol-gel methods. In addition to structural and chemical characterization, I-scan measurements revealed the composites demonstrated non-linear optical behavior with a cut-off frequency tunable with few layer graphene concentration in the composite.
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