GENERATION AND DETECTION OF TERAHERTZ RADIATION WITH AN ARBITRARY POLARIZATION DIRECTION

摘要

A photoconductive switch for generating or detecting terahertz radiation (TR) comprising at least a first and a second pair of electrodes (E_v, E_H, E_GR) on a surface (SS) of a photoconductive substrate, wherein the electrodes of the first pair are separated by a first gap comprising at least a plurality of first rectilinear sections (G_v) extending along a first direction (x) and the electrodes of the second pairs are separated by a second gap comprising at least a plurality of second sections (G_H) extending along a second direction (y), different from the first direction; the photoconductive switch further comprising a patterned opaque layer (PML) selectively masking portions of the gaps between the electrodes. Methods and devices for generating and detecting terahertz radiation comprising such photoconductive switches.