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Surpassing Optical Limit for 28000 Times Blu-Ray Storage on a 12 Centimeter Disk
A separate advance with in data encoding could triple storage to 2.1 Petabytes in a single optical disk.
Researchers at USST, RMIT and NUS have overcome the optical diffraction limit by using earth-rich lanthanide-doped upconversion nanoparticles and graphene oxide flakes. This unique material platform enables low-power optical writing nanoscale information bits.
The higher density system will use inexpensive continuous-wave lasers. This will have lower operating costs compared to traditional optical writing techniques using expensive and bulky pulsed lasers.
Next generation of high-capacity optical data storage technology will also enable the development of energy-efficient nanofabrication of flexible graphene based electronics.