Machining Accuracy

Limiting Factors Affecting the Efficiency of the Micromachining Process

While most of the unique characteristics associated with micromachining with ultrafast lasers can be explained by the lack of thermal diffusion, some important features, notably the extreme high shot-to-shot repeatability, the ability to create sub-micron features, and the capability to machine inside transparent materials, requires a more detailed look at the physics behind the interaction of light with matter.

How does light interact with matter? The following links will help us get a deeper understanding.

Heat diffusion
Optical wavelength
Positioning of the laser beam with respect to the work piece
Stochastic or deterministic nature of the ablation process