Infrared and Laser Engineering, Volume. 53, Issue 3, 20230614(2024)
Method for measuring laser damage threshold of optical thin film elements based on quantitative damage evaluation
Figures & Tables(13)
Fig. 3. Schematic diagram of the white-light interferometry system
Fig. 5. Laser damage degree of window plate under different fluence
Fig. 6. 3D measurement results of damage model. (a) Simulation damage model; (b) Three-dimensional measurement result; (c) Residual
Fig. 8. Analysis of simulation results. (a) Spatial distribution of deviation; (b) Deviation histograms; (c) Cross-sectional comparison
Fig. 9. Experimental measurement system. (a) Laser damage monitoring system; (b) White-light interferometry measurement system
Fig. 10. Laser damage threshold measurement results of cavity mirrors. (a) QELDD method; (b) S-on-1 method
Fig. 11. Laser damage threshold measurement results of windows. (a) QELDD method; (b) S-on-1 method
Table 1. Damage threshold measurement results of laser resonator mirror
View tableView in ArticleTable 1. Damage threshold measurement results of laser resonator mirror
Method Sample LIDT /J·cm−2 QELDD M1 5.10 M2 5.61 S-on-1 M3 5.53
Table 2. Damage threshold measurement results of window plate
View tableView in ArticleTable 2. Damage threshold measurement results of window plate
Method Sample LIDT/J·cm−2 QELDD W1 6.62 W2 6.53 S-on-1 W3 6.33
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Lei Xin, Zhongming Yang, Jun Meng, Zhaojun Liu. Method for measuring laser damage threshold of optical thin film elements based on quantitative damage evaluation[J]. Infrared and Laser Engineering, 2024, 53(3): 20230614
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Received: Nov. 6, 2023
Accepted: --
Published Online: Jun. 21, 2024
The Author Email: Yang Zhongming (zhongming.yang@sdu.edu.cn)
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