High tech glass - Information glass
Tokushima University in Japan has invented a glass that can record information, hoping to help users make better use of products. When it records that it is always happy to receive the package, it should first vigorously develop green packaging, focus the laser on a certain point inside the glass with an optical microscope, and complete an irradiation in 30 picoseconds, leaving a recording spot. When reading information, it should scan the spot with a laser. This kind of recording information can be carried out at room temperature, and its performance is higher than that of the currently used optical discs
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