Characterization of hollow polycarbonate metal waveguides using terahertz time domain spectroscopy

Aparajita Bandyopadhyay, Amartya Sengupta, Valencia Johnson, James A. Harrington, John F. Federici

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

3 Scopus citations


In recent times, terahertz (THz) or the far-infrared region of the electromagnetic spectrum has gained critical significance due to many potential applications including medical diagnostics, nondestructive evaluation of material parameters, chemical sensing, remote sensing and security screening. However with the development of various applications, the need of guided systems for the transmission of THz radiation have posed a challenge, as a flexible waveguide could simplify the propagation and detection of THz waves in remote locations without atmospheric absorption. Different structures, such as, rigid hollow metallic waveguides, solid wires, or short lengths of solid-core transparent dielectrics such as sapphire and plastic have already been explored for THz guiding to characterize their individual loss and dispersion profile. Recently, it has been reported that copper coated flexible, hollow polycarbonate waveguide has low loss of less than 4 dB/m with single mode operation at 1.89 THz. In the present study, using a broadband THz source of photoconductive antennae, we characterize the loss and dispersion profile of hollow core polycarbonate metal waveguides in the frequency range of 0.2 to 1.2 THz.

Original languageEnglish (US)
Title of host publicationTerahertz and Gigahertz Electronics and Photonics V
StatePublished - 2006
EventTerahertz and Gigahertz Electronics and Photonics V - San Jose, CA, United States
Duration: Jan 25 2006Jan 26 2006

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherTerahertz and Gigahertz Electronics and Photonics V
Country/TerritoryUnited States
CitySan Jose, CA

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


  • Coupling efficiency
  • Hollow waveguides
  • Propagation consideration
  • Terahertz time domain spectroscopy
  • Waveguide characterization


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