THz Photoconductive Antenna (PCA)

Application ID: 127921

This model uses the Semiconductor and RF modules to describe a photoconductive antenna (PCA).

A laser pulse is applied on the surface of undoped LT-GaAs to generate electron-hole-pairs, which move under the influence of an external E-field creating a transient electric current pulse. This pulse is then used as the source current density to simulate a subsequent THz pulse.

The main result of the simulation is the far-field spectrum and radiation pattern of the THz pulse.

Learn more in this related blog post: Modeling a THz Photoconductive Antenna with COMSOL Multiphysics®