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- Park, Kibog
- Emergent Materials & Devices Lab.
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Performance Enhancement of Plasmonic Sub-Terahertz Detector Based on Antenna Integrated Low-Impedance Silicon MOSFET
- Author(s)
- Ryu, Min Woo, Kim, Kwan Sung, Lee, Jeong Seop, Park, Kibog, Yang, Jong-Ryul, Han, Seong Tae, Kim, Kyung Rok
- Issued Date
- 2015-04-08
- Citation
- 6th International THz-Bio Workshop
- Abstract
- We demonstrate the performance enhancement of field-effect transistor (FET)-based plasmonic terahertz (THz) detector with monolithic integrated antenna in low-impedance regime and report the experimental results of Si MOSFET impedance in THz regime using 0.2-THz measurement system. By designing FET with low-impedance ranges (<1 kΩ) and integrating antennas with impedances of 50 and 100 Ω, we found that our low-impedance MOSFETs have the input impedance criterion of 50 Ω at 0.2 THz and the MOSFETs with thinner gate oxide show the highly enhanced plasmonic photoresponses at 50-Ω antenna by 325 times from the result of the detector without antenna.
- Publisher
- KAERI WCI center
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