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Proceedings Paper

A characterization study of highly tailorable 3D metamaterials in the thermal infrared for selective emission behaviors
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Paper Abstract

The spectral behaviors of an externally-illuminated thermal infrared metamaterial were characterized through simulation and experimental measurement of the power transmittance and reflectance within the 6 - 20μm range. Finite-difference time domain (FDTD) simulations in both 2-D and 3-D environments were swept over a multitude of bent dipole inclusion configurations at normal incidence angles to produce a model which exhibited a dominant electrical resonance in the long-wave infrared (IR) and increased in magnitude, bandwidth and wavelength as a function of the dipole length. Despite the appearance of fabrication defects in the measured samples, it was found the experimental data was in good agreement with the 3-D FDTD simulations, though not at all with the 2-D simulations. These introductory results indicate the dipole inclusion may behave in many ways similar to an antenna in the IR, enabling spectrally- and spatially-selective control of the emission pattern.

Paper Details

Date Published: 11 September 2013
PDF: 13 pages
Proc. SPIE 8806, Metamaterials: Fundamentals and Applications VI, 880610 (11 September 2013); doi: 10.1117/12.2024551
Show Author Affiliations
Bryan M. Adomanis, Air Force Institute of Technology (United States)
Air Force Research Lab., Materials and Manufacturing Directorate (United States)
D. Bruce Burckel, Sandia National Labs. (United States)
Michael A. Marciniak, Air Force Institute of Technology (United States)

Published in SPIE Proceedings Vol. 8806:
Metamaterials: Fundamentals and Applications VI
Allan D. Boardman; Nader Engheta; Mikhail A. Noginov; Nikolay I. Zheludev, Editor(s)

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