Title: 3.8 mW terahertz radiation generation through plasmonic nano-antenna arrays
Abstract: We present a high-performance photoconductive terahertz emitter based on a two dimensional array of plasmonic nano-antennas. The array of plasmonic nano-antennas is specifically designed to offer high power terahertz radiation by introducing a strong time-varying dipole moment in response to an incident optical pump. We experimentally demonstrate terahertz radiation power levels as high as 3.8 mW over 0.1–5 THz bandwidth in response to a 240 mW optical pump beam, exhibiting the highest reported terahertz power levels with one order of magnitude higher optical-to-terahertz conversion efficiencies compared to conventional designs.
Publication Year: 2015
Publication Date: 2015-07-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 7
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