Terahertz artificial dielectric cuboid lens on substrate for super-resolution images

Igor V. Minin, Oleg V. Minin

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

This paper presents an investigation of terajets formation by dielectric periodic structure at terahertz frequencies (0.1–0.2 THz) in effective medium regime (photonic metamaterial). The dispersions of effective permittivity for periodic structures formed by plastics (ABS, black) were analytically obtained for both regimes. The study of the interaction of a plane wave and artificial cubic dielectric on a substrate parallelepiped to form a subwavelength terahertz beams (terajet) was performed. The results of numerical simulation of S-parameters of structure are discussed. The subwavelength beam waist of terajets about 0.39λ–0.41λ were obtained. The quality factor of terajets are discussed. The results may be applied for creation of methods to obtain subwavelength beams in the terahertz frequency range, and devices based on them. These investigations are opening new research lines such as mesoscale focusing devices for different sensing applications.

Original languageEnglish
Article number326
JournalOptical and Quantum Electronics
Volume49
Issue number10
DOIs
Publication statusPublished - 1 Oct 2017

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Keywords

  • Artificial material
  • Cuboid
  • Super resolution
  • Terajet

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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