High-density three-dimensional optical data storage in a stacked compact disk format with two-photon writing and single photon readout
- 1 March 1999
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 74 (9), 1338-1340
- https://doi.org/10.1063/1.123543
Abstract
Using a polymer block doped with a highly efficient two-photon dye, we have achieved a high density data storage with gray-scale control in multiple planes as stacked compact disks at a separation of 10 μm. The absorption and fluorescence of the dye at the written spot shift to a longer wavelength, permitting an easy fluorescence mode readout with a linear excitation using an inexpensive laser source. The storage capacity in this case is estimated to be 1012 bits/cm3.Keywords
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