摘要
Two-dimensional (2D) materials exhibit exceptionally strong nonlinear optical responses, benefiting from their reduced dimensionality, relaxed phase-matching requirements, and enhanced light-matter interaction. With additional degrees of freedom in the modulation of the physical properties by stacking 2D layers together, nonlinear optics of 2D heterostructures becomes increasingly fascinating. In this perspective, we provide a brief overview of recent advances in the field of nonlinear optics of 2D heterostructures, with a particular focus on their remarkable capabilities in characterization and modulation. Given the recent advances and the emergence of novel heterostructures, combined with innovative tuning knobs and advanced nonlinear optical techniques, we anticipate deeper insights into the underlying mechanisms and more associated applications in this rapidly evolving field.
基金
X.Z.,C.W.,Z.Z.and T.J.acknowledge the support from the National Natural Science Foundation of China(Grant Nos.62005198 and 62175188)
the Science and Technology Commission of Shanghai Municipality(Grant Nos.23ZR1465800 and 23190712300)
X.C.acknowledges the support from the National Natural Science Foundation of China(Grant Nos.61925504,62020106009,and 6201101335)
the Science and Technology Commission of Shanghai Municipality(Grant Nos.17JC1400800,20JC1414600,and 21JC1406100)
the Special Development Funds for Major Projects of Shanghai Zhangjiang National Independent Innovation Demonstration Zone(Grant No.ZJ2021-ZD-008)
Z.W.acknowledges the support from the National Natural Science Foundation of China(Grant Nos.62192770,62192772,and 61621001)
.D.H.acknowledges the support from the Fundamental Research Funds for the Central Universities.
