TITLE

Large-area metamaterials on thin membranes for multilayer and curved applications at terahertz and higher frequencies

AUTHOR(S)
Peralta, X. G.; Wanke, M. C.; Arrington, C. L.; Williams, J. D.; Brener, I.; Strikwerda, A.; Averitt, R. D.; Padilla, W. J.; Smirnova, E.; Taylor, A. J.; O'Hara, J. F.
PUB. DATE
April 2009
SOURCE
Applied Physics Letters;4/20/2009, Vol. 94 Issue 16, p161113
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A possible path for fabricating three-dimensional metamaterials with curved geometries at optical and infrared frequencies is to stack flexible metamaterial layers. We have fabricated highly uniform metamaterials at terahertz frequencies on large-area, low-stress, free-standing 1 μm thick silicon nitride membranes. Their response remains comparable to that of similar structures on thick substrates as measured by the quality factor of the resonances. Transmission measurements with a Fourier transform infrared spectrometer highlight the advantage of fabricating high frequency metamaterials on thin membranes as etalon effects are eliminated. Releasing the membranes enables layering schemes and placement onto curved surfaces in order to create three-dimensional structures.
ACCESSION #
38225257

 

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