Open AccessTerahertz waveguide prism
Author(s) -
Claudia Goy,
Maik Scheller,
Benedikt Scherger,
Vincent P. Wallace,
Martín Koch
Publication year - 2013
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.019292
Subject(s) - prism , terahertz radiation , optics , waveguide , materials science , dispersion (optics) , diffraction , terahertz spectroscopy and technology , optoelectronics , physics
We present an easily fabricated waveguide prism for the terahertz (THz) frequency range. The prism is made of polypropylene and uses waveguide dispersion to spatially separate frequencies over the range of 0.1 to 0.7 THz. The diffraction properties of the prism were determined using electromagnetic field simulations and the waveguide parameters were optimized to maximize frequency dispersion. Angular-dependent measurements of two prisms designs were obtained in a terahertz time-domain goniometer setup. An excellent match between simulation and measurement was found. The prism can be used as a dispersive element in novel THz systems for a variety of applications.