Open AccessPolarization–multiplexed encoding at nanometer scales
Author(s) -
Carlos Macias-Romero,
Peter Munro,
Péter Török
Publication year - 2014
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.026240
Subject(s) - multiplexing , optics , 3d optical data storage , physics , crosstalk , polarization (electrochemistry) , computer data storage , binary number , optical storage , optoelectronics , computer science , telecommunications , computer hardware , mathematics , chemistry , arithmetic
Optical data storage was developed using binary encoding primarily due to signal to noise ratio considerations. We report on a multiplexing method that allows a seven fold storage increase, per storage layer, per side, and propose one that can yield theoretically a 20+ fold increase. Multiplexing is achieved by encoding information in polarization via appropriately oriented nanostructures that emit strongly polarized light when excited by unpolarized light. The storage increase is possible due to the significantly reduced crosstalk that results form using unpolarized light.