Spatial information transmission beyong a system's diffraction limit using optical spectral encoding of the spatial frequency

Sergey Alexandrov, David Sampson

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    Abstract

    We propose optical spectral encoding of an object's spatial frequencies as a means of transmitting, through a low-numerical-aperture optical system, spatial information with an instantaneous spatial frequency bandwidth wider than the optical system's diffraction-limited bandwidth. We validate this new superresolution approach experimentally and demonstrate one of its possible practical implementations—wide-field spectrally encoded imaging that is sensitive to nanometre-scale local variations in the microstructure of centimetre-scale samples.
    Original languageEnglish
    Pages (from-to)1-5
    JournalJournal of Optics. A, Pure and Applied Optics
    Volume10
    Issue number2
    DOIs
    Publication statusPublished - 2008

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