Xiaoguang WANG, Qiuling WEN, Jinhong CHEN, Guoqin HUANG, Changcai CUI, Feng JIANG. Laser-induced plasma-assisted ablation of sapphire microstructures and their wettability[J]. Optics and Precision Engineering, 2024, 32(3): 366
- Optics and Precision Engineering
- Vol. 32, Issue 3, 366 (2024)
Fig. 1. Schematic diagram of LIPAA experimental setup for sapphirp
Fig. 2. LIPAA processing experiment setup
Fig. 3. Schematic diagram of distance h between field lens and target
Fig. 4. SEM images of morphologies of sapphire microgrooves at different distances between field mirror and target
Fig. 5. Dependence of width （a） and depth （b） of sapphire microgrooves on distance between field mirror and target
Fig. 6. SEM images of morphologies of sapphire microgrooves at different laser powers
Fig. 7. Relationship of width （a） and depth （b） of sapphire microgroove with laser power respectively
Fig. 8. Evolution of surface morphologies of sapphire microgrooves with target-to-sapphire distance
Fig. 9. Width （a） and depth （b） of sapphire microgrooves as function of target-to-sapphire distance
Fig. 10. SEM images of morphologies of sapphire microgrooves at different scanning speeds
Fig. 11. Width （a） and depth （b） of sapphire microgrooves as function of scanning speed
Fig. 12. （a） Schematic diagram of contact angle and （b） Contact angle of original surface of sapphire
Fig. 13. Surface morphologies and the corresponding contact angles of sapphire microstructures
Fig. 14. Surface contact angles and corresponding surface micro-morphology of optimal hydrophobic and hydrophilic structures of sapphire
Fig. 15. EDS analysis of LIPAA-processed sapphire microstructures
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Table 1. Factors and their corresponding levels
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Table 2. Orthogonal experiment design
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Table 3. Measurement results of sapphire contact angle based on orthogonal test
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Table 4. Range analysis of the contact angle
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