The empty space above a purple area (workspace) is for switching to that workspace - click the empty space to switch to that workspace.
位于紫色工作区上面的空白空间可以通过在上面进行鼠标单击转换为该工作区的一部分。
2
It shows that the self-pumping type and pump-probe types bistable switching can both be realized in the same structure, and the latter can separate the pump and signal in frequency and space.