26 April 2010 Plasmon-resonant microchip emitters and detectors for terahertz sensing and spectroscopic applications
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Abstract
This paper reviews recent advances in emission and detection of terahertz (THz) radiation utilizing two-dimensional plasmons in semiconductor heterostructures and their possible sensing and spectroscopic applications. The device is introduced as a light source into a Fourier-transform THz spectrometer. Water-vapor absorption lines as well as fingerprints of honey and maple syrup of sugar-group materials were successfully observed. Absolute sensitivity characteristics and detection polarization are also presented, showing the possibility of new highly efficient THz detectors.
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Taiichi Otsuji, Taiichi Otsuji, Tsuneyoshi Komori, Tsuneyoshi Komori, Takayuki Watanabe, Takayuki Watanabe, Tetsuya Suemitsu, Tetsuya Suemitsu, Dominique Coquillat, Dominique Coquillat, Wojciech Knap, Wojciech Knap, } "Plasmon-resonant microchip emitters and detectors for terahertz sensing and spectroscopic applications", Proc. SPIE 7671, Terahertz Physics, Devices, and Systems IV: Advanced Applications in Industry and Defense, 767102 (26 April 2010); doi: 10.1117/12.850009; https://doi.org/10.1117/12.850009
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