Particle-swarm optimization of axially superresolving binary-phase diffractive optical elements

    Authors

    T. G. Jabbour;S. M. Kuebler

    Comments

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    Abbreviated Journal Title

    Opt. Lett.

    Keywords

    POINT-SPREAD FUNCTION; ONLY PUPIL FILTERS; DESIGN; LIMITS; MASKS; Optics

    Abstract

    A particle-swarm optimization (PSO) algorithm was developed for designing binary-phase-only diffractive optical elements (DOEs) that superresolve the axially focused point-spread function. The method is based on vector diffraction theory to ensure solutions are valid under high-NA conditions. A DOE is identified that superresolves the focal spot by 34% and maintains the sidelobes below 50% of the peak intensity. The algorithm was used to obtain the Pareto front of the fitness-value space, which describes the achievable super-resolution versus an allowed upper bound in sidelobe intensity. The results suggest that the algorithm yields solutions that are global in terms of the co-optimized fitness values G and M. (C) 2008 Optical Society of America.

    Journal Title

    Optics Letters

    Volume

    33

    Issue/Number

    13

    Publication Date

    1-1-2008

    Document Type

    Article

    Language

    English

    First Page

    1533

    Last Page

    1535

    WOS Identifier

    WOS:000258017800047

    ISSN

    0146-9592

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