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测量石英管几何量的光学原理 总被引:2,自引:0,他引:2
采用光电及微机技术实现无损坏、非接触、快速自动测量石英管外经及壁厚,是基于表征此几何量的光学信息,本文论述了取得石英管几何量光学信息的原理、实验及可达到的理论测量精度。 相似文献
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We report the laser-chirp controlled terahertz(THz) wave generation from two-color-laser-induced air plasma.Our experimental results reveal that the THz wave is affected by both the laser energy and chirp,leading to radiation minima that can be quantitatively reconstructed using the linear-dipole-array model.The phase difference between the two colors,determined by the chirp and intensity of the laser,can account for the radiation minima.Furthermore,we observe an asynchronous variation in the ge... 相似文献
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