Metal-glass nanocomposite for optical storage of information
- 14 November 2011
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 99 (20), 201904
- https://doi.org/10.1063/1.3660740
Abstract
We demonstrate an all-optical data storage and readout technique on a medium that has proved to be stable over centuries—glass containing metallic nanoparticles. Using ultra-short laser pulses to persistently change the shapes of the nanoparticles dependent of the laser polarization, well-defined local dichroism in the focal volume can be produced. The latter could be utilized for multi-bit encoding in spot sizes down to the diffraction limit, where the information can be read out very fast by wavelength- and polarization-sensitive detection of the transmitted light. The storage capacity of the proposed technique is comparable with that of blu-ray discs.Keywords
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