Nonlinear optical frequency mixing response of single and multilayer graphene
作者： Chelsea Qiushi Xia , Changxi Zheng , Michael Sears Fuhrer , Stefano Palomba
DOI: 10.1364/OL.41.001122
关键词:
摘要: It has been shown that graphene exhibits unique electronic, thermal, mechanical, and optical properties. In particular, due to its gapless band structure linear dispersion relation around the Dirac points, a strong nonlinear response, which theoretically predicted depend on number of layers. this Letter, we experimentally validate theoretical predictions by probing multilayer χ(3) nonlinearities. The intensity four-wave mixing signal is observed grow monotonically as function layers, up maximum corresponding ∼32 after it decreases, well in agreement with predictions.
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