Single-shot three-dimensional laser processing with an in-system-optimized hologram

摘要

A computer-generated hologram (CGH) displayed on a spatial light modulator (SLM) can be used for parallel laser processing with high throughput and high light-use efficiency . And we have demonstrated a method of in-system optimization that continuously optimizing a CGH during laser processing to dynamically compensate for unknown imperfections and sudden disturbances in the practical laser processing systems . Based on the technology demonstrated in our previous work that a new method for 3D reconstruction optimization, it enables the system to realize the high-quality single-shot three-dimensional laser processing with an in-system optimized hologram, and can be applied to many applications due to its high-stability and high-precision.