| DOI | Resolve DOI: https://doi.org/10.1109/IRMMW-THz57677.2023.10299302 |
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| Author | Search for: Heydarian, H.; Search for: Xie, X.; Search for: Vishnuradhan, A.; Search for: Yalavarthi, E. K.; Search for: Weck, A.; Search for: Gamouras, A.1; Search for: Ménard, J.-M.1 |
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| Affiliation | - National Research Council of Canada. Quantum and Nanotechnologies
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| Format | Text, Article |
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| Conference | 2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), September 17-22, 2023, Montreal, QC, Canada |
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| Subject | time-frequency analysis; sensitivity; earth observing system; resonant frequency; writing; lasers and electrooptics; plasmons |
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| Abstract | We present a bull’s-eye plasmonic antenna for enhanced terahertz (THz) field detection in an electro-optic sampling (EOS) scheme. We use numerical simulation to optimize the antenna’s geometrical parameters to achieve a long nonlinear interaction length between a near-infrared gating pulse and locally enhanced THz field at the center of the plasmonic structure. The direct laser writing method is then employed to fabricate the gold eye-antenna on a 110-oriented gallium phosphide (GaP) substrate. The performance of the proposed nonlinear plasmonic detector is characterized with a time-resolved THz setup. Preliminary results show an improvement of the EOS detection sensitivity by 2.5 times at the plasmonic resonance frequency of around 2.5 THz. |
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| Publication date | 2023-09-17 |
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| Publisher | IEEE |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | b24b2151-8e96-427a-9c52-fcf266aeacec |
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| Record created | 2024-07-17 |
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| Record modified | 2024-07-17 |
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