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本文阐述一种简单实用的可同时测量高斯光束聚焦光点直径和受照物能起作用的阈值功率密度的方法,并讨论了激光功率波动和受照物对焦误差对测量精度的影响。
In this paper, a simple and practical method for simultaneous measurement of the focused spot diameter of a Gaussian beam and the threshold power density at which a photographic material can function is discussed. The effects of laser power fluctuations and the focus error on the measurement accuracy are discussed.