When 1/4 wave plate 2 and 3 are removed, the ambipolar diffusionconstant and mobility of electron charge can be measured.
当去除1/4波片2和3时，则能够测量电子电荷的双极扩散常数和迁移率。
2
The experiment device schematic diagram is shown in the drawing 1 of the abstract and can be used to measure the ambipolar diffusionconstant of electron spin;