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Proceedings Paper

Mesoscopic effects in discretised metamaterial spheres
Author(s): Mikhail Lapine; Christopher G. Poulton; Ross C. McPhedran
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Paper Abstract

It is well known that effective medium description of metamaterials requires much caution, even for strongly subwavelength systems. Boundary effects play a dramatic role in finite samples with discrete structure, making their observable properties quite different from the predictions of effective medium theory. We report some new findings regarding the distinction between a homogenised response and actual properties of discrete structures, looking into canonical shape of metamaterial objects. Even for large size (up to 20000 “meta-atoms”), we observe a difference between large discretised spheres and a continuous one, which is important for practical design and future development of metamaterials. Finally, we also provide the results for non-resonant discrete finite systems

Paper Details

Date Published: 23 December 2015
PDF: 6 pages
Proc. SPIE 9668, Micro+Nano Materials, Devices, and Systems, 96680L (23 December 2015); doi: 10.1117/12.2202561
Show Author Affiliations
Mikhail Lapine, Univ. of Technology, Sydney (Australia)
Christopher G. Poulton, Univ. of Technology, Sydney (Australia)
Ross C. McPhedran, The Univ. of Sydney (Australia)

Published in SPIE Proceedings Vol. 9668:
Micro+Nano Materials, Devices, and Systems
Benjamin J. Eggleton; Stefano Palomba, Editor(s)

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