Shape-Memory Polymers: Deformable, Programmable, and Shape-Memorizing Micro-Optics (Adv. Funct. Mater. 26/2013)

Authors

  • Hangxun Xu,

    1. Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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  • Cunjiang Yu,

    1. Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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  • Shuodao Wang,

    1. Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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  • Viktor Malyarchuk,

    1. Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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  • Tao Xie,

    Corresponding author
    1. Sensors and Materials Laboratory, HRL Laboratories, LLC, Malibu CA 90265, USA
    • Sensors and Materials Laboratory, HRL Laboratories, LLC, Malibu CA 90265, USA.
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  • John A. Rogers

    Corresponding author
    1. Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
    2. Department of Chemistry, Department of Mechanical Science and Engineering, Department of Electrical and Computer Engineering, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
    • Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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Abstract

original image

Micro-optical elements with micro- and nanoscale surface features prepared from an optically transparent shape-memory elastomer via replica molding at high precision are reported by Tao Xie, John A. Rogers, and co-workers on page 3299. Through shape-memory programming, the surface features and corresponding optical functions can be manipulated both globally and locally in a controlled manner. The image illustrates that a flattened microlens array loses the capability to focus light and only those completely recovered microlenses (coupled with a circular indium tin oxide heater) are able to project the letter “A” after thermal activating.

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