Compact Writing and Reading Head for Hyper Speed Data Recording on Ceramic Material

A method for recording data in a layer of a ceramic material, the method comprising:

• (a) providing the layer of the ceramic material;
• and
• (b) selectively illuminating a plurality of regions of the layer of the ceramic material with a laser beam using a digital micromirror device and at least one scanning device;
• (c) wherein parameters of the laser beam and a time of illumination for each of the selected regions are configured to ablate each of the selected regions in order to record data in the layer of the ceramic material by creating recesses in the layer of the ceramic material;
• and
• (d) wherein the laser beam originates from a picosecond laser or from a femtosecond laser, wherein the laser beam passes, in order, through a prism or a semi-transparent mirror, hits the digital micromirror device, and again passes through the prism or the semi-transparent mirror before selectively illuminating the plurality of regions of the layer of the ceramic material.

A device for recording data in a layer of a ceramic material, the device comprising:

• a laser source comprising a picosecond laser or a femtosecond laser;
• a digital micromirror device adapted to emit multiple laser beams;
• a prism or a semi-transparent mirror positioned between the laser source and the digital micromirror device;
• a substrate holder;
• focusing optics adapted to focus each of the multiple laser beams emitted by the digital micromirror device onto a substrate mounted on the substrate holder;
• and
• one or more scanning devices adapted to steer a pattern of the multiple laser beams emitted by the digital micromirror device over the substrate, thereby recording the data.