NDLI: Superfocusing effect of V-groove metallic structure for terahertz wave

Content Provider	IEEE Xplore Digital Library
Author	Tsuzuki, S. Kurihara, K. Kuwashima, F. Furuya, T. Yamamoto, K. Tani, M.
Copyright Year	2011
Description	Author affiliation: Research Center for Development of Far-Infrared Region, University of Fukui (Tsuzuki, S.; Furuya, T.; Yamamoto, K.; Tani, M.) \|\| Faculty of Education and Regional Studies, University of Fukui (Kurihara, K.) \|\| Department of Electrical and Electronics Engineering, Fukui University of Technology (Kuwashima, F.)
Abstract	Focusing THz waves into a sub-wavelength area is a crucial issue for THz spectroscopy of minute samples and also for high-spatial resolution THz-imaging. Recently, super-focusing phenomena of THz waves, or more generally, those of electromagnetic waves are under intense investigation with theoretical and experimental studies using tapered metallic waveguiding structures. In this report we present our experimental study on a super-focusing effect of a V-groove metallic structure for THz pulsed waves with an opening angle about 10 degrees. Without coupling substrate lens, a 17% amplitude transmission of THz broadband waves (0∼2.5 THz) through a 2-μm bottom-width was observed without significant waveform distortion and phase delay.
Starting Page	1598
Ending Page	1600
File Size	240917
Page Count	3
File Format	PDF
ISBN	9781457719394
e-ISBN	9780977565788
DOI	10.1109/IQEC-CLEO.2011.6194080
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-28
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Metals Focusing Spectroscopy Laser beams Optical waveguides Measurement by laser beam Phase distortion
Content Type	Text
Resource Type	Article

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