The Ponderomotive potential of this kind of laser in the radial looks like an annular valley with intensity peak in 0.707 , where is the beam waist of laser.

• TEM(1；0)+TEM(0；1)模激光场对应的有质动力势径向分布呈环状山谷型，其峰值位于0.；707 处，其中 为激光光束的腰宽。