Abstract

Recently, a terajet, a jet in the terahertz (THz, 0.1 -10 THz) region, generated from a dielectric cuboid has been introduced [1] and attracted many research interests owing to its capability to obtain subwavelength full width at half maximum (FWHM) that is promising for many applications. The terajet was previously visualized and characterized in the THz region by our unique THz-waves visualization system based on electrooptic (EO) detection [2], e.g. the direct observation of the terajet generation and the angular characteristics of the terajet [3]. In this study, the subwavelength-resolution THz imaging based on the terajet is demonstrated by exploiting the cuboid in an THz imaging system.

© 2017 Japan Society of Applied Physics, Optical Society of America