Photoconductive antennas for terahertz radiation

Photoconductive materials are currently used to design antennas that radiate in the terahertz band. In this master thesis is proposed to study the design of different types of antennas and feeding mechanisms to increase the radiation efficiency.A model to simulate the dynamics of the electrons/holes pairs when they are generated in a semiconductor material by the application of an optical field and accelerated by a bias electrostatic field is presented. This model helps in the estimation of the photocurrent induced by the mobility of carriers to get a prediction of the THz power provided by a set of different prototypes of photoconductive antennas that have been designed and discussed