SHIZUOKA UNIV HAMAMATSU (JAPAN) FACULTY OF ENGINEERING
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Three-dimensional optical memory with photorefractive materials is discussed for ultra-high densitycapacity memory exceeding the classical limit of a conventional optical recording system. Bit data are recorded as highly localized refractive index variations in three-dimensional volume using a focused laser beam. We show recording and reading results using various recording materials and optical configurations. A multi-structured optical recording medium using a photoisomerization polymer and a transparent films has been developed for reflection confocal reading. Two-photon recording is also demonstrated.
- Computer Systems
- Recording and Playback Devices
- Electricity and Magnetism