Generation and detection of terahertz radiation with arbitrary polarization directions

摘要

A photoconductive switch that generates or detects terahertz radiationFirst and second pair electrodes (EV) on the surface of the photoconductive substrateEh,Including EGR;First pair electrodesSeparated by a first gap including at least a plurality of first linear sections (GV) extending along the first directionA second pair of electrodesSeparated by a second gap including at least a plurality of second linear sections (GH) extending along a second direction (y) different from the first direction;The photoconductive switch further comprisesA patterned impermeable layer (PML) that selectively masks the gap between the electrodes.A method and apparatus including such a photoconductive switch for generating and detecting terahertz radiation.