| 摘要 |
The invention relates to a method and apparatus for three-dimensional storage of data, including writing and reading of data, using a three-dimensional storage medium, which can be switched between two stable states by physical excitation. The switching between the states of the storage medium is controlled by controlling the duration and/or the intensity and/or the wavelength of the excitation. The writing of the data is effected by switching to a predetermined state within predetermined memory cells of the storage medium, and the readout of data is effected by detecting the momentary state of the storage medium within predetermined memory cells. The excitation is performed with at least three energy beams radiating at an angle to each other. According to the invention, the energy beams (preferably light beams) are formed in an essentially planar fashion, with one dimension (width) of the beam substantially being at least the multiple of a corresponding dimension of a memory cell, while the other dimension (thickness) of the beam substantially being equal to the corresponding dimension of a memory cell.
|
