Coupling Properties of Broadband Terahertz Pulses in a Circular Hollow-Core Waveguide

  • Deepak Kararwal
  • , Joel Edouard Nkeck
  • , Xavier Ropagnol
  • , Emmanuel Abraham
  • , Francois Blanchard

Research output: Contribution to Book/Report typesContribution to conference proceedingspeer-review

Abstract

Hollow core circular waveguides are promising candidates for guiding terahertz waves. In this study, we numerically and experimentally investigate the coupling parameters under fixed coupling conditions for different waveguide diameters. Terahertz time-domain spectroscopy is employed for experimental of study mode propagation. Multimode behavior is observed above 0.3 THz, whereas waveguides with larger diameters exhibit reduced number of interference peaks and low single-mode loss. Efficient propagation of terahertz radiation in these waveguides may find applications in telecommunication and spectroscopy.

Original languageEnglish
Title of host publication2025 Photonics North, PN 2025
PublisherInstitute of Electrical and Electronics Engineers Inc.
Edition2025
ISBN (Electronic)9798331556235
DOIs
Publication statusPublished - 2025
Event2025 Photonics North, PN 2025 - Ottawa, Canada
Duration: 20 May 202523 May 2025

Conference

Conference2025 Photonics North, PN 2025
Country/TerritoryCanada
CityOttawa
Period20/05/2523/05/25

!!!Keywords

  • single-mode propagation
  • spectroscopy
  • terahertz
  • waveguide

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