Quasi-Optical Terahertz Polarizers Enabled by Inkjet Printing of Carbon Nanocomposites
journal contribution
posted on 2013-12-03, 00:00 authored by Arindam Das, Thomas Schutzius, Constantine M. MegaridisWe report a new approach for cost-effective manufacturing of THz quasi-optical polarizers by inkjet printing of polymer-carbon nanowhisker (CNW) dispersions. The electromagnetic interference properties of coatings with fixed CNW/polymer composition and varying thickness are quantified by a frequency domain THz spectroscopy system in the range 570-630GHz. A shielding effectiveness of ~40dB is attained for 70m-thick coatings. A prototype THz polarizer printed on Mylar film displayed transmission and absorbance that varied with polarization orientation. The degree of polarization for film thickness of ~1μm was 0.35. This performance can be improved by refining grid dimensions, increasing coating thickness and adopting multi-layer polarizer structures.
Funding
This work was partially supported by NSF Grants ECCS-1002088 and ECCS-1102214
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Publisher Statement
Copyright 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters and may be found at http://apl.aip.org/.Publisher
American Institute of PhysicsLanguage
- en_US
issn
0003-6951Issue date
2012-12-01Usage metrics
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