%0 Journal Article
%T Terahertz Polarization Imaging and Its Applications
%A Shinichi Watanabe
%J Photonics | An Open Access Journal from MDPI
%D 2018
%R https://doi.org/10.3390/photonics5040058
%X Abstract This review focuses on several recent research activities regarding precise and fast polarization-sensitive terahertz time-domain spectroscopy systems for imaging purposes, and explains three interesting application examples. Owing to modulation techniques that have recently been developed for the evaluation of the instantaneous terahertz electric-field (E-field) vector, fast and precise terahertz polarization imaging becomes feasible. This terahertz technology enables high-resolution surface topography, precise understanding of the spatial E-field vector distribution of the focused terahertz pulse, and examination of strain-induced birefringence in polymeric materials. These examples constitute a new application area of terahertz photonics with emphasis on both fundamental optics and industrial applications. View Full-Tex
%K terahertz spectroscopy
%K polarization
%K topography
%K parabolic mirror
%K birefringence
%U https://www.mdpi.com/2304-6732/5/4/58