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


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

June 19, 2017
November 16, 2017
January 5, 2018
terahertz, plasmonics, carbon nanotube, flexible imaging

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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Last updated on Dec. 18, 2018