Abstract

High-speed spatial imaging of the temporal variation of the terahertz electric-field (E-field) vector will elucidate the fundamental phenomena in optical physics. For example, a test of the rigoulous diffraction theory by using the terahertz vector wave is important since the vector nature of the electromagnetic field introduces complications of the calculations [1] which should be compared with the experiments. Moreover, a spatial imaging of the polarization profile of a focused vector beam will provide a useful information on its novel applications such as the efficient coupling to a metallic wire [2] or the tight focusing [3].

© 2015 IEEE