近日，我院先进材料超微结构与超快过程研究所硕士生张景迪，通过自相位调制实验发现了新型二维材料——黑磷的高光敏性，预言了其在光学方面的应用。该研究成果以“Broadband spatial self-phase modulation of black phosphorous”为题被光学领域的国际权威期刊Optics Letters接收.（SCI影响因子3.292），指导老师为肖思老师和何军老师。

该论文主要报道了黑磷纳米片离散溶液的自衍射现象，发现其具有极高的光敏感性。论文还计算了其可见波段和近红外波段的三阶非线性折射率和三阶非线性极化率。该工作是在肖思老师和何军老师的指导下，张景迪在其硕士二年级上学期期间完成的。

论文英文摘要如下：

The spatial self-phase modulation (SSPM) experiments of the two-dimensional (2D) black phosphorus (BP) nanoflake suspension are performed with focused femtosecond pulsed lasers at 350 ~ 1160 nm. In broadband region, the slope of SSPM ring number versus laser intensity varies from 0.99 to 0.34, which is larger than 0.25 in MoS2. We deduce the portion of the fluid globe (ξ)to be 0.0067, which is a constant independent on laser intensity, when the laser intensity is above 10 W/cm2. The nonlinear refractive index of BP is measured to be ~ 10-5cm2W−1and the third order nonlinear susceptibility isχ(3)~ 10-8esu at multiple wavelengths.

论文配图如下：