尽管双光子系数数值上小于飞秒和皮秒脉冲块体氮化镓的但较大的调制深度本实验的最大透过率为23最小透过率为75考虑到分散液的低物质含量度这说明具有良好的光限幅性能。请改写成英文。

Although the two-photon coefficient is numerically smaller than that of femtosecond and picosecond pulse bulk gallium nitride, the experiment shows a larger modulation depth. The maximum transmittance is 23%, and the minimum transmittance is 75%. Considering the low substance concentration of the dispersion liquid, this indicates excellent optical limiting performance.