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Proceedings Paper

Designing core-shell 3D photonic crystal lattices for negative refraction
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Paper Abstract

We use a plane wave expansion method to define parameters for the fabrication of 3-dimensional (3D) core-shell photonic crystals (PhCs) with lattice geometries that are capable of all-angle negative refraction (AANR) in the midinfrared centered around 8.0 μm. We discuss the dependence of the AANR frequency range on the volume fraction of solid within the lattice and on the ratio of the low index core material to the high index shell material. Following the constraints set by simulations, we fabricate two types of nanolattice PhCs: (1) polymer core-germanium shell and (2) amorphous carbon core-germanium shell to enable experimental observation of 3D negative refraction and related dispersion phenomena at infrared and eventually optical frequencies.

Paper Details

Date Published: 20 February 2017
PDF: 8 pages
Proc. SPIE 10112, Photonic and Phononic Properties of Engineered Nanostructures VII, 101120G (20 February 2017); doi: 10.1117/12.2251545
Show Author Affiliations
Victoria F. Chernow, California Institute of Technology (United States)
Ryan C. Ng, California Institute of Technology (United States)
Julia R. Greer, California Institute of Technology (United States)


Published in SPIE Proceedings Vol. 10112:
Photonic and Phononic Properties of Engineered Nanostructures VII
Ali Adibi; Shawn-Yu Lin; Axel Scherer, Editor(s)

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