Plasmon-resonant microchip emitters and detectors for terahertz sensing and spectroscopic applications

Taiichi Otsuji; Tsuneyoshi Komori; Takayuki Watanabe; Tetsuya Suemitsu; Dominique Coquillat; Wojciech Knap

doi:10.1117/12.850009

26 April 2010 Plasmon-resonant microchip emitters and detectors for terahertz sensing and spectroscopic applications

Taiichi Otsuji, Tsuneyoshi Komori, Takayuki Watanabe, Tetsuya Suemitsu, Dominique Coquillat, Wojciech Knap

Proceedings Volume 7671, Terahertz Physics, Devices, and Systems IV: Advanced Applications in Industry and Defense; 767102 (2010) https://doi.org/10.1117/12.850009
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

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.

Citation Download Citation

Taiichi Otsuji, Tsuneyoshi Komori, Takayuki Watanabe, Tetsuya Suemitsu, Dominique Coquillat, and 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); https://doi.org/10.1117/12.850009

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