PC Stats has put up an new article about "Fluorescent Multi-Layer Memory"
Further qualifications are imposed on the fluorescent material when a recordable (not just readable) system is contemplated. The fluorescence must be either capable of being switched on or off, or it must be susceptible to a threshold at which it stops changing once it is written on. Thermal bleaching techniques attempt to solve this problem by using a fluorescent substance that loses its fluorescence as soon as it´s written on (becoming a permanent layer).Read more