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Proceedings Paper

Simulation, fabrication, and measurement of a plasmonic-enhanced terahertz photoconductive antenna
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Paper Abstract

In this work a new plasmonic thin-film based terahertz photoconductive antenna is proposed. The computational method utilized to design the antenna is outlined, as well as the steps and preliminary results for the fabrication and characterization of the device. The model predicted over two orders of magnitude increase in the peak photocurrent as compared to a conventional device design, while slightly reducing the width of the induced current pulse. This indicates that the proposed design will be effective as a high efficiency terahertz emitter. In addition to the computational modeling, preliminary results demonstrating the proposed fabrication processes and experimental characterization are presented. It is demonstrated that when using a pyroelectric detector to quantify the output terahertz power it is important to first quantify the power of the IR photons generated by thermal relaxation in the device.

Paper Details

Date Published: 25 February 2016
PDF: 6 pages
Proc. SPIE 9747, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications IX, 974704 (25 February 2016); doi: 10.1117/12.2217852
Show Author Affiliations
Nathan Burford, Univ. of Arkansas (United States)
Magda El-Shenawee, Univ. of Arkansas (United States)

Published in SPIE Proceedings Vol. 9747:
Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications IX
Laurence P. Sadwick; Tianxin Yang, Editor(s)

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