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Superfocusing of terahertz waves in V-groove metallic structure

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6 Author(s)
Satoshi Tsuzuki ; Research Center for Development of Far-Infrared Region, University of Fukui, Fukui Japan ; Kazuyoshi Kurihara ; Fumiyoshi Kuwashima ; Takashi Furuya
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In this report we present our experimental study on a super-focusing effect of a V-groove metallic structure for THz pulsed waves. Without using coupling 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.

Published in:

Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on

Date of Conference:

2-7 Oct. 2011