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  • Title: Linear optics based nanoscopy.
    Author: Gur A, Fixler D, Micó V, Garcia J, Zalevsky Z.
    Journal: Opt Express; 2010 Oct 11; 18(21):22222-31. PubMed ID: 20941124.
    Abstract:
    Classically, optical systems are considered to have a fundamental resolution limit due to wave nature of light. This article presents a novel method for observing sub-wavelength features in a conventional optical microscope using linear optics. The operation principle is based on a random and time varying flow of nanoparticles moving in proximity to the inspected sample. Those particles excite the evanescent waves and couple them into harmonic waves. The sub-wavelength features are encoded and later on digitally decoded by proper image processing of a sequence of images. The achievable final resolution limit corresponds to the size of the nanoparticles. Experimental proof of principle validation of the technique is reported.
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