The development and application of femtosecond laser micro-nano processing technology reveals the mystery of femtosecond laser “cold” processing!
In traditional material processing applications using long pulse lasers (microseconds, nanoseconds, etc.), the main interaction between laser and material is to convert laser energy into thermal effects to melt and vaporize the material, thereby achieving material removal. However, in this process, due to the accumulation of heat, a large and strong heat-affected zone (HAZ) will …