beam waist light spot size 束腰光斑尺寸
laser light spot size 激光光斑尺寸
light beam spot size 光斑尺寸
size of light spot 光斑大小
The method can confirm the Gaussian distribution of optical intensity for the fundamental transverse mode of the He-Ne laser and determine the size of its light spot.
这种方法能够证实氦氖激光基横模的光强分布是高斯分布，能够确定光斑的大小。
Accurate position information is obtained independent of the light spot intensity profile, symmetry or size.
获得精确的位置信息的同时不依赖于光斑强度、形状、对称性或尺寸。
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