Experimental generation of arbitrarily shaped diffractionless superoscillatory optical beams

We present, theoretically and experimentally, diffractionless optical beams displaying arbitrarily-shaped sub-diffraction-limited features known as superoscillations. We devise an analytic method to generate such beams and experimentally demonstrate optical superoscillations propagating without chan...

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Bibliographic Details
Published in:Optics express 2013-06, Vol.21 (11), p.13425-13435
Main Authors: Greenfield, Elad, Schley, Ran, Hurwitz, Ilan, Nemirovsky, Jonathan, Makris, Konstantinos G, Segev, Mordechai
Format: Article
Language:English
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Summary:We present, theoretically and experimentally, diffractionless optical beams displaying arbitrarily-shaped sub-diffraction-limited features known as superoscillations. We devise an analytic method to generate such beams and experimentally demonstrate optical superoscillations propagating without changing their intensity distribution for distances as large as 250 Rayleigh lengths. Finally, we find the general conditions on the fraction of power that can be carried by these superoscillations as function of their spatial extent and their Fourier decomposition. Fundamentally, these new type of beams can be utilized to carry sub-wavelength information for very large distances.
ISSN:1094-4087
1094-4087
DOI:10.1364/oe.21.013425