Terahertz (THz) radiation ... One reaches the THz emitter, such as a photoconductive antenna, semiconductor wafer or nonlinear crystal, where the optical pulses are transformed into ultrashort ...

Abstract: Terahertz (THz) frequencies ... the past few decades due to the advent of convenient THz sources and detectors. THz photoconductive antennas (PCA), due to their attractive features, such as ...

Abstract: We study photoconductive antennas based on thin film of topological insulator and semiconductor heterostructure. A shift of the spectrum of a dipole antenna on a topological insulator to the ...