因此，实现了零间隙，即，在微透镜之间不存在 间隙，微透镜的填充系数被最大化。

Thus, a zero gap is realized, where no gap between micro lenses exists, and the fill factor of micro lens is maximized.

youdao

当波长趋于零时，折射系数都趋于1，这是由于脉冲激光的频率增高，等离子体中产生了非常强的“透镜”效应所至。

When the wavelength tends to zero, the refraction coefficient will tends to 1. Because with the frequency of pulse laser is going up, the very strong "Lens" effect will be produced in plasma.

youdao