A new THz passive radial polarizer

Jean-Paul Guillet (1) , Ronan Adam (1) , Annick Pénarier (1) , Jeremie Torres (1) , Philippe Nouvel (1) , Laurent Chusseau (1, 2) , Thierry Grosjean (3) , Fadi Issam Baida (3) , Laurent Billot (3) , Daniel Charraut (3)

1 IES - Institut d’Electronique et des Systèmes
2 RADIAC - Radiations et composants
3 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)

A new THz radial polarizer suitable to convert the usual linearly polarized signal from a millimeter or sub-millimeter source is described. It is based on mode-filtering within a cylindrical waveguide combined with two tapers and a discontinuous phase element. An experimental demonstration is given at ap 100 GHz and transposition to higher THz frequencies by scaling is straightforward.

Domaines: Optique / photonique

Jean-Paul Guillet, Ronan Adam, Annick Pénarier, Jeremie Torres, Philippe Nouvel, et al.. A new THz passive radial polarizer. 33rd International Conference on Infrared, Millimeter and Terahertz Waves, 2008, Pasadena, United States. ⟨10.1109/ICIMW.2008.4665608⟩. ⟨hal-01904190⟩