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        Bright and dark helices of light

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        904778.pdf (PDF, 5Mb)
        Author
        Steuernagel, Ole
        Attention
        2299/9313
        Abstract
        Laser beams can be made to form bright and dark intensity helices of light. Such helices have a pitch length on the order of a wavelength and may have applications in lithography and the manipulation of particles through optical forces. The formation of bright helices is more strongly constrained by optical resolution limits than that of dark helices, corresponding scaling laws are derived and their relevance for photo-lithography pointed out. It is shown how to arrange dark helices on a grid in massively parallel fashion in order to create handed materials using photo-lithographic techniques
        Publication date
        2012
        Published in
        Optics Express
        Published version
        https://doi.org/10.1364/OE.20.014371
        Other links
        http://hdl.handle.net/2299/9313
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