Ultrafast electro-optic sensors and magneto-optic sensors for THz beams

We present the recent progress of terahertz (THz) sensors in free-space electromagnetic-field applications. We introduce the basic concepts and recent results for the detection of pulsed electromagnetic radiation with electro-optic and magneto-optic sensors. Ultrafast detection system to characterize the temporal and spatial distribution of free- space, broadband, pulsed electromagnetic radiation (GHz/THz beams) will be discussed.