Chenghao Yu, Weijing Zhou, Hao Chang, Yifu Chen, Wei Guo. Impulse coupling characteristics of typical metal materials irradiated by nanosecond laser with a millimeter-scale spot size[J]. Infrared and Laser Engineering, 2021, 50(8): 20200390
- Infrared and Laser Engineering
- Vol. 50, Issue 8, 20200390 (2021)
Fig. 1. Schematic diagram of experimental system
Fig. 2. Schematic diagram of torsion pendulum micro impulse measurement system
Fig. 3. Measurement system for mm-level or cm-level spot size
Fig. 4. Variation of spot size with the laser fluence when measuring the ablation impulse generated by irradiating Al 5A06 target
Fig. 5. The typical changes of torsion angle with time after the pulse laser was applied
Fig. 6. Preprocessing results of experimental data
Fig. 7. The impulse of the three metal materials irradiated at different laser fluences
Fig. 8. The impulse coupling coefficient of the three metal materials irradiated at different laser fluences
Fig. 9. The relationship between the transmittance and the laser fluence
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