Sub-wavelength surface gratings for light redirection in transparent substrates

Thomas Buss, Cameron Smith, Mads Brøkner Christiansen, Rodolphe Marie, Anders Kristensen

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    We demonstrate sub-wavelength grating couplers patterned on glass surfaces which are designed to convert incident free-space radiation into guided modes along the glass material. The devices are fabricated by nanoimprint lithography and the measured optical performance is compared to a simple model based on diffraction and ray-optics, and complemented by numerical simulations. We show that our approach is suitable for redirecting and guiding light over a broad range of incident angles and wavelengths in transparent substrates. The technique has potential applications for solar harvesting in window panes and display applications with minimal influence on vision quality. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4738777]
    Original languageEnglish
    JournalApplied Physics Letters
    Volume101
    Issue number4
    Pages (from-to)043109
    Number of pages4
    ISSN0003-6951
    DOIs
    Publication statusPublished - 2012

    Keywords

    • Diffraction Gratings
    • Integrated Optics
    • Nanolithography
    • Optical Couplers
    • Optical Fabrication
    • Optical Glass
    • Soft Lithography

    Cite this

    Buss, Thomas ; Smith, Cameron ; Christiansen, Mads Brøkner ; Marie, Rodolphe ; Kristensen, Anders. / Sub-wavelength surface gratings for light redirection in transparent substrates. In: Applied Physics Letters. 2012 ; Vol. 101, No. 4. pp. 043109.
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    abstract = "We demonstrate sub-wavelength grating couplers patterned on glass surfaces which are designed to convert incident free-space radiation into guided modes along the glass material. The devices are fabricated by nanoimprint lithography and the measured optical performance is compared to a simple model based on diffraction and ray-optics, and complemented by numerical simulations. We show that our approach is suitable for redirecting and guiding light over a broad range of incident angles and wavelengths in transparent substrates. The technique has potential applications for solar harvesting in window panes and display applications with minimal influence on vision quality. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4738777]",
    keywords = "Diffraction Gratings, Integrated Optics, Nanolithography, Optical Couplers, Optical Fabrication, Optical Glass, Soft Lithography",
    author = "Thomas Buss and Cameron Smith and Christiansen, {Mads Br{\o}kner} and Rodolphe Marie and Anders Kristensen",
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    Sub-wavelength surface gratings for light redirection in transparent substrates. / Buss, Thomas; Smith, Cameron; Christiansen, Mads Brøkner; Marie, Rodolphe ; Kristensen, Anders.

    In: Applied Physics Letters, Vol. 101, No. 4, 2012, p. 043109.

    Research output: Contribution to journalJournal articleResearchpeer-review

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    AU - Buss, Thomas

    AU - Smith, Cameron

    AU - Christiansen, Mads Brøkner

    AU - Marie, Rodolphe

    AU - Kristensen, Anders

    PY - 2012

    Y1 - 2012

    N2 - We demonstrate sub-wavelength grating couplers patterned on glass surfaces which are designed to convert incident free-space radiation into guided modes along the glass material. The devices are fabricated by nanoimprint lithography and the measured optical performance is compared to a simple model based on diffraction and ray-optics, and complemented by numerical simulations. We show that our approach is suitable for redirecting and guiding light over a broad range of incident angles and wavelengths in transparent substrates. The technique has potential applications for solar harvesting in window panes and display applications with minimal influence on vision quality. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4738777]

    AB - We demonstrate sub-wavelength grating couplers patterned on glass surfaces which are designed to convert incident free-space radiation into guided modes along the glass material. The devices are fabricated by nanoimprint lithography and the measured optical performance is compared to a simple model based on diffraction and ray-optics, and complemented by numerical simulations. We show that our approach is suitable for redirecting and guiding light over a broad range of incident angles and wavelengths in transparent substrates. The technique has potential applications for solar harvesting in window panes and display applications with minimal influence on vision quality. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4738777]

    KW - Diffraction Gratings

    KW - Integrated Optics

    KW - Nanolithography

    KW - Optical Couplers

    KW - Optical Fabrication

    KW - Optical Glass

    KW - Soft Lithography

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