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IJAT Vol.12 No.1 pp. 87-96
doi: 10.20965/ijat.2018.p0087
(2018)

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Terahertz Plasmonics and Nano-Carbon Electronics for Nano-Micro Sensing and Imaging

Xiangying Deng* and Yukio Kawano*,**,†

*Department of Electrical and Electronic Engineering, Tokyo Institute of Technology
2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan

†Corresponding author

**Laboratory for Future Interdisciplinary Research of Science and Technology, Tokyo Institute of Technology, Tokyo, Japan

Received:
June 19, 2017
Accepted:
November 16, 2017
Published:
January 5, 2018
Creative Commons License
Keywords:
terahertz, plasmonics, carbon nanotube, flexible imaging
Abstract

Sensing and imaging with THz waves is an active area of modern research in optical science and technology. There have been a number of studies for enhancing THz sensing technologies. In this paper, we review our recent development of THz plasmonic structures and carbon-based THz imagers. The plasmonic structures have strong possibilities of largely increasing detector sensitivity because of their outstanding properties of high transmission enhancement at a subwavelength aperture and local field concentration. We introduce novel plasmonic structures and their performance, including a Si-immersed bull’s-eye antenna and multi-frequency bull’s-eye antennas. The latter part of this paper explains carbon-based THz detectors and their applications in omni-directional flexible imaging. The use of carbon nanotube films has led to a room-temperature, flexible THz detector and has facilitated the visualization of samples with three-dimensional curvatures. The techniques described in this paper can be used effectively for THz sensing and imaging on a micro- and nano-scale.

Cite this article as:
X. Deng and Y. Kawano, “Terahertz Plasmonics and Nano-Carbon Electronics for Nano-Micro Sensing and Imaging,” Int. J. Automation Technol., Vol.12 No.1, pp. 87-96, 2018.
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