期刊
PHYSICAL REVIEW LETTERS
卷 105, 期 9, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.105.097401
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资金
- RCUK
- EPSRC
- Deutsche Forschungsgemeinschaft
- EPSRC [EP/G041482/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/G041482/1] Funding Source: researchfish
We investigate the nonlinear optical properties of graphene flakes using four-wave mixing. The corresponding third-order optical susceptibility is found to be remarkably large and only weakly dependent on the wavelength in the near-infrared frequency range. The magnitude of the response is in good agreement with our calculations based on the nonlinear quantum response theory.
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