Chinese Optics Letters, 2019, 17 (5): 051601, Published Online: May. 13, 2019
Transient optical properties in fused silica measured by time-resolved high-power laser photometer Download: 1104次
Abstract
A time-resolved high-power laser photometer, which measures the real-time variations of transmission, internal reflection, and scattering simultaneously with picosecond time resolution, was developed to investigate the material response sequence during high-power nanosecond laser irradiation in thick fused silica. It was found that the transient transmission decreased sharply, accompanied by an increase in internal reflection at the rising edge of the laser pulse. The transient transmission recovered, while laser damage did not occur, but it did not recover if the scattering increased, indicating the occurrence of laser damage. The reason for the sharp decrease of transmission and the relationship between the transmission drop and laser damage were discussed.
Zhen Cao, Hongbo He, Guohang Hu, Yuanan Zhao, Liujiang Yang, Jianda Shao. Transient optical properties in fused silica measured by time-resolved high-power laser photometer[J]. Chinese Optics Letters, 2019, 17(5): 051601.