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Proceedings Paper

Plasmon-resonant microchip emitters and detectors for terahertz sensing and spectroscopic applications
Author(s): Taiichi Otsuji; Tsuneyoshi Komori; Takayuki Watanabe; Tetsuya Suemitsu; Dominique Coquillat; Wojciech Knap
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Paper 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.

Paper Details

Date Published: 26 April 2010
PDF: 12 pages
Proc. SPIE 7671, Terahertz Physics, Devices, and Systems IV: Advanced Applications in Industry and Defense, 767102 (26 April 2010); doi: 10.1117/12.850009
Show Author Affiliations
Taiichi Otsuji, Tohoku Univ. (Japan)
Tsuneyoshi Komori, Tohoku Univ. (Japan)
Takayuki Watanabe, Tohoku Univ. (Japan)
Tetsuya Suemitsu, Tohoku Univ. (Japan)
Dominique Coquillat, GES, CNRS, Univ. Montpellier 2 (France)
Wojciech Knap, GES, CNRS, Univ. Montpellier 2 (France)

Published in SPIE Proceedings Vol. 7671:
Terahertz Physics, Devices, and Systems IV: Advanced Applications in Industry and Defense
Mehdi Anwar; Nibir K. Dhar; Thomas W. Crowe, Editor(s)

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