Boron nanosheets possess unique photoelectric properties, including photosensitivity, photoresponse, and optical nonlinearity. In this article, we show the interaction between light and boron nanosheets in which concentric rings formed in the far field, which attributed to the strong Kerr nonlinearity of boron nanosheets. Furthermore, the distortion, regulation and relationship between the Kerr nonlinearity and effective mass or carrier mobility of the diffraction rings of boron nanosheets have been investigated. Our work shows that the spatial self-phase modulation effect of boron nanosheets is indeed caused by nonlocal electronic coherence. In addition, we have implemented all-light modulation and all-light logic gates based on the prepared boron nanosheets. We believe that our results will provide a powerful demonstration of nonlinear photonic devices based on boron nanosheets and a reference for photonic devices based on two-dimensional materials.

硼纳米片具有独特的光电特性，包括光敏性、光响应和光学非线性。在本文中，我们展示了光与硼纳米片之间的相互作用，其中在远场形成同心环，这归因于硼纳米片的强克尔非线性。此外，还研究了硼纳米片衍射环的克尔非线性与有效质量或载流子迁移率之间的畸变、调节和关系。我们的工作表明，硼纳米片的空间自相位调制效应确实是由非局域电子相干引起的。此外，我们还基于制备的硼纳米片实现了全光调制和全光逻辑门。