Storage technology developed for fused silica glass to record and read digital data in the order of CD recording density
Thursday, October 4, 2012 - 07:00
in Physics & Chemistry
Hitachi today announced the development of technology for the semi-perpetual storage of digital data in fused silica glass which is known for its high resistance to heat and water, in collaboration with the laboratory of Professor MIURA Kiyotaka of the School of Engineering, Kyoto University. The data is recorded using a laser, and can be read using an optical microscope. High recording density was achieved by creating multiple recording layers within the fused silica by changing the focal point of the laser. In the current research, a recording density comparable to that of a compact disc (henceforth, CD) was successfully achieved with 4 layers.