Filling Fraction Dependent Properties of Inverse Opal Metallic Photonic Crystals

Authors

  • X. Yu,

    1. Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, IL 61801 (USA)
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  • Y.-J. Lee,

    1. Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, IL 61801 (USA)
    2. Present address: Sandia National Laboratories, PO Box 5800, MS 1082, Albuquerque, NM 87185, USA
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  • R. Furstenberg,

    1. Department of Physics, University of Illinois at Urbana-Champaign, Urbana, IL 61801 (USA)
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  • J. O. White,

    1. Department of Physics, University of Illinois at Urbana-Champaign, Urbana, IL 61801 (USA)
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  • P. V. Braun

    1. Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, IL 61801 (USA)
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  • The authors gratefully acknowledge helpful discussions with Xin Li, Dezhuan Han and Prof. Jian Zi of the Physics Department, Fudan University, Shanghai, China. This work is supported by the U.S. Department of Energy (DOE), Division of Materials Sciences, under Award No. DEFG02-91ER45439, through the Frederick Seitz Materials Research Laboratory at the Univ. of Illinois at Urbana-Champaign (UIUC) and the U.S. Army Research Laboratory and the U.S. Army Research Office under contract/grant number DAAD19-03-1-0227. Some experiments were performed in the Center for Microanalysis of Materials at UIUC, which is partially supported by the U.S. DOE under grant DEFG02-91-ER45439.

Abstract

original image

Nickel inverse opals with controlled metal filling fraction are fabricated through a combination of colloidal crystal templated electrodeposition and electropolishing (see figure). Optical measurements demonstrate that both reflection and emission are significantly modified by the photonic structure. The optical properties are truly three dimensional only at low metal filling fractions (after electropolishing).

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