Experimental and Computational Analysis of Broadband THz Photoconductive Antennas

Figure 1

Conceptual diagram of THz generation in a PCA: (a) femtosecond laser beam excites electron-hole pairs in the LT-GaAs layer, (b) generated photocurrent pulse, and (c) metallic electrodes (antenna) excited by the photocurrent pulse in the gap to radiate THz pulse [1].