Hongxu Liu, Di Wang, Chen'ang Li, Zhi Wei, Guangyong Jin, Yanpeng Zhang, di Yu. Experimental study on damage area and morphology of silica-based QPD induced by long pulse[J]. Infrared and Laser Engineering, 2021, 50(4): 20200455
- Infrared and Laser Engineering
- Vol. 50, Issue 4, 20200455 (2021)
Fig. 1. Simulation diagram of temperature evolution with time at the corresponding point of the upper surface spot center under different energy densities
Fig. 2. On-line monitoring experiment configuration diagram of the QPD irradiated by laser
Fig. 3. Structure of the GT111 silicon-based QPD
Fig. 4. Relationship between damaged areas of QPD and energy fluence
Fig. 5. Relationship between damaged areas of QPD and pulse width
Fig. 6. Relationship among dark current, damage area and energy density
Fig. 7. τ =0.5 ms，I =15.79-51.19 J/cm2，damaged morphology on the upper surface of QPD
Fig. 8. Surface peeling on the upper surface after pulse laser irradiation under different pulse widths
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