Experimental characterization of terajet generated from dielectric cuboid under different illumination conditions

Hai Huy Nguyen Pham, Shintaro Hisatake, Tadao Nagatsuma, Igor Vladilenovich Minin, Oleg Vladilenovich Minin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

The terajet, which is the generation of a jet in the terahertz (THz) frequency band (0.1 THz-10 THz), has attracted significant research interest owing to its subwavelength hotspot that can be exploited in THz imaging applications. To date, the generation of the terajet from a dielectric cuboid has been studied and verified under planar incidences. In practical applications of high-resolution THz imaging, it is essential to take into consideration the alignment of the cuboid, as well as the efficient use of the THz power. Here, we experimentally study the generation of the terajet under different oblique and compressed incidences, in order to verify the characteristics of the terajet, such as the position, direction, and full width at half maximum (FWHM) properties. We discover that the terajet can be generated under compressed incidence. The output angle of the terajet under oblique incidence is linear and identical to the input angle of the incident beam. The position of the generated terajet is varied within two wavelengths. The FWHW below one wavelength was maintained under those illumination conditions. Consequently, the cuboid can function as a novel focusing device, which can enhance the resolution by simply placing it in the imaging system with a flexible alignment.

Original languageEnglish
Title of host publication10th Global Symposium on Millimeter-Waves, GSMM 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages120-122
Number of pages3
ISBN (Electronic)9781538640036
DOIs
Publication statusPublished - 6 Jul 2017
Event10th Global Symposium on Millimeter-Waves, GSMM 2017 - Hong Kong, Hong Kong
Duration: 24 May 201726 May 2017

Conference

Conference10th Global Symposium on Millimeter-Waves, GSMM 2017
CountryHong Kong
CityHong Kong
Period24.5.1726.5.17

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ASJC Scopus subject areas

  • Computer Networks and Communications
  • Instrumentation
  • Radiation

Cite this

Pham, H. H. N., Hisatake, S., Nagatsuma, T., Minin, I. V., & Minin, O. V. (2017). Experimental characterization of terajet generated from dielectric cuboid under different illumination conditions. In 10th Global Symposium on Millimeter-Waves, GSMM 2017 (pp. 120-122). [7970306] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/GSMM.2017.7970306