A Characterization Study of Highly-Tailorable 3-D Metamaterials in the Thermal Infrared for Spectral and Directive Emission Behaviors
Date of Award
3-21-2013
Document Type
Thesis
Degree Name
Master of Science
Department
Department of Engineering Physics
Abstract
Highly-tailorable thermal infrared metamaterials were characterized between 6 - 20µm wavelengths and Θinc = 0 - 50° incidence angles through FDTD simulations and spectroscopic measurements. Sandia National Laboratories fabricated true 3D metamaterial unit cells of gold bent dipoles inside 5μm cubic cavities using membrane projection lithography. Both measurements and simulations confirmed the existence of electrical and plasmonic dipole resonances, though fabrication errors Jed to spectral broadening and reduced intensity in the measurements. The samples were heated to 150°C and directional emittance was calculated from spectral radiance measurements, and found to be in good agreement spectrally with a Kirchoff emittance calculated from transmittance/reflectance measurements.
AFIT Designator
AFIT-ENP-13-M-01
DTIC Accession Number
NOT IN DTIC
Recommended Citation
Adomanis, Bryan M., "A Characterization Study of Highly-Tailorable 3-D Metamaterials in the Thermal Infrared for Spectral and Directive Emission Behaviors" (2013). Theses and Dissertations. 914.
https://scholar.afit.edu/etd/914