Femtosecond laser processing has great advantages in precise micro-machining to the transparency materials such as silica glass, sapphire, and diamond. Our processing technologies may provide the precise micro-holes and binary lens processing.

The femtosecond laser has an ultra short pulse width of 100 fs (1fs=10^-15) compared to that of the conventional YAG laser of several tens of ns (1ns=10^-9). A wavelength of the femtosecond laser is near infrared light of 800nm which is transparent to materials such as a sapphire and a silica glass. However focused femtosecond laser can induce refractive index modification inside the materials or ablate materials on the surface only around the focal point. By using these features, three-dimensional micro structures and micro optics can be generated on and inside the materials.