Terahertz waves are located between microwaves and infrared in the electromagnetic spectrum, and have unique properties, such as high penetrating ability, low energy loss, and the advantages of matching the intrinsic resonance frequency with molecules and materials, which make teraherz waves have great application potential in materials science, communications, medical imaging, materials analysis, security and other fields. However, due to the weak transmission capacity of traditional materials in the terahertz band, THz technology faces challenges such as weak nonlinear effects and low signal conversion efficiency. As a two-dimensional material, graphene has become a research hotspot in recent years due to its unique electronic structure of Dirac cone, ultra-high carrier mobility and strong nonlinear optical response, and its characteristics in the terahertz band are particularly interesting. In this paper, we review the research progress of graphene in the field of terahertz nonlinear optics in recent years, focusing on its enhancement strategy, experimental results and technical applications.

Xu Yang, Qiang Wang, Bolong Cheng. Research Progress of Terahertz Nonlinearity on Graphene Materials. Academic Journal of Materials & Chemistry (2025), Vol. 6, Issue 3: 66-70. https://doi.org/10.25236/AJMC.2025.060309.

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