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3-D Printed Terahertz Lens for Generation of Non-diffractive Bessel Beam Carrying OAM

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

Abstract

A novel 3-dimensional (3-D) printed lens for high-order Bessel beam generation operating at 300 GHz is proposed in this paper. The designed terahertz (THz) lens can transform the spherical wave-front from the feed horn into non-diffractive Bessel beam carrying orbital angular momentum (OAM). The lens consists of discrete dielectric posts, whose height can be tuned from pixel to pixel to realize the desired aperture phase distribution. Furthermore, 3-D printed technology is used to fabricate the lens with low cost. Measured results demonstrate that the designed 3-D printed lens can generate THz non-diffractive Bessel vortex beam carrying OAM.
Original languageEnglish
Title of host publication14th European Conference on Antennas and Propagation (EuCAP 2020)
PublisherIEEE
ISBN (Electronic)978-88-31299-00-8
DOIs
Publication statusPublished - Mar 2020
Event14th European Conference on Antennas and Propagation (EuCAP 2020) - Copenhagen, Denmark
Duration: 15 Mar 202020 Mar 2020

Publication series

NameEuropean Conference on Antennas and Propagation, EuCAP

Conference

Conference14th European Conference on Antennas and Propagation (EuCAP 2020)
Abbreviated titleEuCAP 2020
PlaceDenmark
CityCopenhagen
Period15/03/2020/03/20

Research Keywords

  • Bessel beam
  • lens
  • orbit angualr momentum (OAM)
  • terahertz (THz)
  • three-dimensional (3-D) printing

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