The results show that the intensity distribution of focused EFGB change quickly, especially near the focal point, and the spot will rotates quickly.
结果表明，EFGB聚焦后，近场光强分布变化很快，特别是焦点前后，光强分布会快速旋转。
The results show that the intensity distribution of focused EFGB change quickly, especially near the focal point, and the spot will rotates quickly.
结果表明，EFGB聚焦后，近场光强分布变化很快，特别是焦点前后，光强分布会快速旋转。
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