Laser surface texturing can improve the functional properties of metallic materials, with the texture shape being a crucial factor. The spatial light modulator (SLM) is used to design the shape of individual textures. However, generating deep microtextures with precise shapes on metallic materials currently requires extended processing times, limiting their use in industrial applications. This study investigates the generation of the microtexturing patterns with various shapes on stainless steel 316 L surface using a SLM. The method combining computer‐generated holograms with images demonstrates high energy fluence efficiency. The holograms determine the reconstruction distance, shape, and size of the textures. Patterns of the textures with various complex shapes (e.g., circular, triangle, square, hexagon, and other), 6–12 μm depth and 50–70 μm width are achieved using only 5 pulses (200 μs per texture) and 25 kHz pulse frequency rate. This method achieves texturing of 10 × 10 mm areas with various shapes in just 2 s, offering a processing speed ≈500 times faster than current state‐of‐the‐art ultrashort laser pulse techniques, significantly advancing the efficiency of microtexturing processes.
Ahuir‐Torres et al. (Sun,) studied this question.