Title :
THz Surface Plasmon Antennae Experiments
Author :
Nazarov, M. ; Coutaz, J.-L. ; Shkurinov, A. ; Garet, F.
Author_Institution :
M.V. Lomonosov Moscow State Univ., Moscow
Abstract :
A diffraction grating engraved in a limited area of a flat aluminum surface serves as coupler to excite surface plasmon that propagates along the flat surface. At the flat surface edge, THz radiation is scattered into free space and impinges the edge of a similar antenna, on which a surface plasmon is excited and diffracted by a grating towards a detector. Using THz time-domain spectroscopy, we study the plasmon-plasmon coupling. We report a strong coupling efficiency over several cm of propagation in air.
Keywords :
diffraction gratings; phonon-plasmon interactions; submillimetre wave spectroscopy; submillimetre waves; surface plasmons; Al; THz radiation; THz surface plasmon antennae; THz time-domain spectroscopy; diffraction grating; flat aluminum surface; flat surface edge; plasmon-plasmon coupling; Aluminum; Antennas and propagation; Diffraction gratings; Frequency; Infrared detectors; Plasmons; Scattering; Signal detection; Spectroscopy; Time domain analysis;
Conference_Titel :
Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics, 2006. IRMMW-THz 2006. Joint 31st International Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0400-2
Electronic_ISBN :
1-4244-0400-2
DOI :
10.1109/ICIMW.2006.368782
