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Optical storage of high density information beyond the diffraction limit : a quantum study

Vincent Delaubert·Nicolas Treps·Gao Bo·Claude Fabre
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Abstract

We propose an optical read-out scheme allowing a demonstration of principle of information extraction below the diffraction limit. This technique, which could lead to improvement in data read-out density onto optical discs, is independent from the wavelength and numerical aperture of the reading apparatus, and involves a multi-pixel array detector. Furthermore, we show how to use non classical light in order to perform bit discrimination beyond the quantum noise limit.

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Vincent Delaubert, Nicolas Treps, Gao Bo, Claude Fabre. 2005-12-19. Optical storage of high density information beyond the diffraction limit : a quantum study. https://doi.org/10.1103/physreva.73.013820

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