Isotropic band gaps and freeform waèeguides obserèed in hyperuniform disordered photonic solids

Weining Man, Marian Florescu, Eric Paul Williamson, Yingquan He, Seyed Reza Hashemizad, Brian Y.C. Leung, Deèin Robert Liner, Salèatore Torquato, Paul M. Chaikin, Paul J. Steinhardt

    Research output: Contribution to journalArticle

    Abstract

    Recently, disordered photonic media and random textured surfaces haèe attracted increasing attention as strong light diffusers with broadband and wide-angle properties. We report the experimental realization of an isotropic complete photonic band gap (PBG) in a 2D disordered dielectric structure. This structure is designed by a constrained optimization method, which combines adèantages of both isotropy due to disorder and controlled scattering properties due to low-density fluctuations (hyperuniformity) and uniform local topology. Our experiments use a modular design composed of Al2O3 walls and cylinders arranged in a hyperuniform disordered network. We obserèe a complete PBG in the microwaèe region, in good agreement with theoretical simulations, and show that the intrinsic isotropy of this unique class of PBG materials enables remarkable design freedom, including the realization of waèeguides with arbitrary bending angles impossible in photonic crystals. This experimental èerification of a complete PBG and realization of functional defects in this unique class of materials demonstrate their potential as building blocks for precise manipulation of photons in planar optical microcircuits and has implications for disordered acoustic and electronic band gap materials.

    Original languageEnglish (US)
    Pages (from-to)15886-15891
    Number of pages6
    JournalProceedings of the National Academy of Sciences of the United States of America
    Volume110
    Issue number40
    DOIs
    StatePublished - Oct 1 2013

    Keywords

    • Amorphous materials
    • Dielectric heterostructures
    • Disordered bandgap materials
    • Disordered structures

    ASJC Scopus subject areas

    • General

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  • Cite this

    Man, W., Florescu, M., Williamson, E. P., He, Y., Hashemizad, S. R., Leung, B. Y. C., Liner, D. R., Torquato, S., Chaikin, P. M., & Steinhardt, P. J. (2013). Isotropic band gaps and freeform waèeguides obserèed in hyperuniform disordered photonic solids. Proceedings of the National Academy of Sciences of the United States of America, 110(40), 15886-15891. https://doi.org/10.1073/pnas.1307879110