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6 October 2023 Plasmonic photoconductive terahertz focal-plane array for super-resolution and high-speed imaging
Xurong Li, Deniz Mengu, Aydogan Ozcan, Mona Jarrahi
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Proceedings Volume PC12683, Terahertz Emitters, Receivers, and Applications XIV; PC1268305 (2023) https://doi.org/10.1117/12.2679596
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States
Abstract
We present a plasmonic photoconductive terahertz focal-plane array that can provide spatial amplitude and phase, ultrafast temporal and spectral information simultaneously with a high imaging speed. Utilizing the high dynamic range (> 60 dB) and wide bandwidth (> 3 THz) in all focal-plane array pixels, we demonstrate super-resolution imaging on partially-etched high-resistivity silicon objects and reconstruct both the 2D shape and depth with a 16-fold enhancement in the space-bandwidth product and an effective number of pixels larger than 1-kilo pixels. We also demonstrate a 16-fps terahertz time-domain video, which can be further super-resolved by a holographic algorithm.
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Xurong Li, Deniz Mengu, Aydogan Ozcan, and Mona Jarrahi "Plasmonic photoconductive terahertz focal-plane array for super-resolution and high-speed imaging", Proc. SPIE PC12683, Terahertz Emitters, Receivers, and Applications XIV, PC1268305 (6 October 2023); https://doi.org/10.1117/12.2679596
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KEYWORDS
Staring arrays
Plasmonics
High speed imaging
Super resolution
High dynamic range imaging
Imaging systems
Silicon
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