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    Analysis of the focusing crosstalk effects of broadband all-dielectric planar metasurface microlens arrays for ultra-compact optical device applications

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    manuscrpt_last_335766.pdf
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    Description:
    Final Accepted Manuscript
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    Author
    Özdemir, Aytekin
    Yılmaz, Nazmi
    Alboon, Shadi A.
    Takashima, Yuzuru
    Kurt, Hamza
    Affiliation
    Univ Arizona, Coll Opt Sci
    Issue Date
    2018-10-15
    
    Metadata
    Show full item record
    Publisher
    OPTICAL SOC AMER
    Citation
    Özdemir, A., Yılmaz, N., Alboon, S. A., Takashima, Y., & Kurt, H. (2018). Analysis of the focusing crosstalk effects of broadband all-dielectric planar metasurface microlens arrays for ultra-compact optical device applications. OSA Continuum, 1(2), 506-520.
    Journal
    OSA CONTINUUM
    Rights
    © 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    Microlens arrays have been widely used for different optoelectronic applications. The demand for compact optical devices necessitates the deployment of even smaller microlens arrays; however, as the spacing between individual lenses reduces and the lens diameter approaches the length scale of the incident wavelength of light, diffraction starts playing a critical role and produces a significant impact on the final focusing properties of the optical field. In this paper, we analyze the focusing characteristics of all-dielectric ultra-compact metasurface lens arrays for efficient optical device applications, constructed by kinds of broadband planar lenses composed of subwavelength nano-scatterers. By using the 3D finite-difference time-domain (FDTD) method, focusing and diffraction-based crosstalk effects caused by the changing physical spacing between adjacent metalenses, the diameter of microlenses, the operating wavelength, and the army size are rigorously investigated. Analysis of the achieved results show that a larger spacing, a larger lens size, and a shorter wavelength can lead to a weaker focusing crosstalk effect. Moreover, the crosstalk effect does not have a significant dependence on the array's overall size. This research study may provide an important technological reference to designing an array of all-dielectric planar metasurface lenses with a well-controlled focusing performance and may pave the way further toward the application of metasurface lens arrays in compact optical sensing, coupling, and detecting system designs. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
    Note
    12 month embargo; published 27 Sep 2018
    ISSN
    2578-7519
    DOI
    10.1364/OSAC.1.000506
    Version
    Final accepted manuscript
    Sponsors
    Turkish Academy of Sciences
    Additional Links
    https://www.osapublishing.org/abstract.cfm?URI=osac-1-2-506
    ae974a485f413a2113503eed53cd6c53
    10.1364/OSAC.1.000506
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    UA Faculty Publications

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