研究目的
Investigating the enhancement of third-harmonic generation in graphene heterostructures by combining nonlinear nanoplasmonics and graphene plasmons.
研究成果
The observation of a 102 enhancement in the third-harmonic generation demonstrates the potential of graphene heterostructures for tunable nonlinear optical applications, confirming the suitability of this novel architecture.
研究不足
The study focuses on the enhancement of third-harmonic generation but does not explore the potential for single-photon-level nonlinearities in depth.
1：Experimental Design and Method Selection:
The study combines nonlinear nanoplasmonics with graphene plasmons to enhance third-harmonic generation.
2：Sample Selection and Data Sources:
Measurements were performed for different sample configurations, including samples with and without graphene and gold nanoribbons.
3：List of Experimental Equipment and Materials:
Gold nanoribbons, graphene, h-BN and Al2O3 spacers.
4：Experimental Procedures and Operational Workflow:
A series of measurements were conducted to confirm the origin of the third-harmonic signal, comparing scenarios with and without graphene and nanoribbons.
5：Data Analysis Methods:
The third-order nonlinear susceptibility was analyzed as a function of gold nanoribbon width with different spacers.
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