Hui SHI, Yuhan LIN, Tianqing JIA, Kaiqiang CAO, Yuchan ZHANG, Ruozhong HAN, Zhenrong SUN. Efficient Processing of Super-hydrophobic Biomimetic Structures on Stainless Steel Surfaces by Spatiotemporal Interference of Two Femtosecond Laser Beams Based on Spatial Light Modulator[J]. Acta Photonica Sinica, 2021, 50(6): 91
- Acta Photonica Sinica
- Vol. 50, Issue 6, 91 (2021)
Fig. 1. Experimental setup of the spatiotemporal-interference-based femtosecond laser shaping
Fig. 2. Phase diagram is loaded on the SLM and corresponding light intensity
Fig. 3. The SEM images of the structures with different laser fluence
Fig. 4. The SEM images of the structures with different pulse numbers
Fig. 5. The contact angles with laser fluence Φ
Fig. 6. The water droplet can't fall on the stainless steel sample
Fig. 7. Contact angles with laser pulse numbers（Φ =1.37 J/cm2）
Fig. 8. Contact angles with laser pulse numbers（Φ =0.72 J/cm2）
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Table 1. The percentage of oxygen and carbon content on the surface of samples with different laser fluence
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Table 2. The percentage of oxygen and carbon content on the surface of samples with different pulse numbers
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