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Conferences > CLEO_QELS > 2014 > FTh4K > FTh4K.2

7.5% Optical-to-Terahertz Conversion Efficiency through Use of Three-Dimensional Plasmonic Electrodes

Shang-Hua Yang, Mohammed R. Hashemi, Christopher W. Berry, and Mona Jarrahi

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Abstract

We present a high-efficiency photoconductive terahertz source based on high-aspect ratio plasmonic contact electrodes. Terahertz radiation powers up to 105 µW are obtained at an optical pump power of 1.4 mW, exhibiting a record-high optical-to-terahertz conversion efficiency of 7.5%.

© 2014 Optical Society of America

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